A Beginners Guide to Agate Identification

So you found a cool rock-but is it an agate? This video will help you identify different kinds of agates and their imposters! Agate identification can sometimes be difficult-but using these tips and tricks will help you become a pro in no time!
Traits of an Agate:
Conchoidal Fracturing
Waxy Luster
Banding
7 on the Mohs Hardness Scale
Potato Skin/Bumpy Texture
Some of the agates and agate imposters mentioned in this video include:
Banded Agate: a classic translucent agate with banding 5:30, 6:09, 28:03, 29:15
Banded Jasper: a NON-translucent microcrystalline quartz in a variety of colors that includes a band or bands 6:40
Chalcedony: a translucent microcrystalline quartz that does NOT have banding 8:17, 20:00, 22:45, 28:00, 28:53
Paint Agate: a NON-translucent agate with banding 9:55, 20:25, 27:14
Fortification Agate: also called an adhesion banded agate, this type of agate has bands that connect with each other 10:00, 24:25
Floater Agate: an agate that has banding in between or "floating" in a sea of quartz 11:56
Moss agate: an agate that has a mossy looking pattern 12:50
Fractured Membrane Agate: an agate that’s banded is fractured into pieces 13:02
Geode Agate: an agate that has geode crystals inside of the rock 14:56
Tube Agate: an agate that has tube structures running through the rock 16:18
Peeler Agate: an agate that has been broken along banding lines or look like it's been "peeled" 17:55
Agate Veining: a host rock that has agate structure running through the rock 21:18
Gravitationally Banded Agate: an agate that has parallel horizontal bands 21:28
Carnelian Agate: a classic banded agate with a distinctive bright to dark red coloring 24:03
Agate Chips: small pieces of agate that have been broken away from an agate 24:35
Carnelian: a chalcedony with a red to red-orange coloring 27:40, 29:30
Whirl Agate: an agate that’s banding is whirled in swirls with no clear defined bands 29:00
Eye Agate: an agate that is similar to a tube agate but the circular agate eye is surface-level 29:43
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#agateariel #thefinders #agates #rockhounding
Happy Hounding!

[@DiamondPaintWithDiamondDave]

To be technical, Agate, Jasper, and Chert (flint) are all chalcedony which is a waxy-looking, microcrystalline quartz. depending on the rockhound you are talking to, anything that is translucent could be considered an agate, but to gem collectors, only banded are considered agates for those purposes. Banded chert is also sometimes called banded jasper as well, as Jasper falls more into the chert side of chalcedony than the agate type.

[@Beastt17]

As an absolute beginner, I found this video to be more helpful than any other I've seen so far. I still don't know for sure what I'm looking at with most rocks, but at least I have a clue of a few things they might be.

[@AgateAriel]

I’m glad it could be helpful!

[@gabrielking9569]

I liked the video 🙂 just in case you didn't know, I wanted to point out something that caught my eye and attention. Your knife that you used, has a flint rod which is really 😎 cool. Did you know that agates are a type of flint too? You can start a fire with one. I just wanted to give you some knowledge like you have provided for the earth. I'm from Missouri and live near Crowleys Ridge. This ridge stretches over 200 miles!! It's a great source of lace agates, jasper, geodes and many other precious stones 😀 Thank you for your videos. They've helped me on my journey of rock hunting! I feel like it's natures treasures just waiting for someone to find! I wish you happy hunting and God bless you 🙏

[@AgateAriel]

Oh wow I did not know that! Might be a cool video idea to try! Thank you for the info!

[@jimmymcgill2557]

is Agate the same thing as Chert then except with the lovely banding you see?

[@gabrielking9569]

@Jimmy Mcgill no it is not Jim. The reason for spark with agates are because there are a 7 on the Mohs scale. Chert is also a very hard stone. The Mohs scale goes up to 10. The diamond holds this title as the only one! Chert is silicon dioxide and forms around limestone. Its nickname is flint! Agate is a semiprecious silica chalcedony. A form of quartz made of many pockets. Color gets trapped in those pockets and form the lace or banded ring. Not all agates are lace tho. Some have no banding. Agate is also transparent just like quartz meaning light can be seen threw the stone. I hope this helped you! Summing everything up by saying both agate and chert can start a fire due to their hardness on the Mohs scale!!

[@jimmymcgill2557]

@@gabrielking9569 thanks buddy, i knew they were both a form of chalcedony but it can get confusing with so many different things having the same SiO2 forumla! i knew Jasper is closely related (but opaque) and Agate being translucent i just wasn't sure if banded chert/flint would still be classed as an Agate

[@henrietteterpstra5213]

Nice information, I am just learning a lot about Agate. I am a yewelry creator and used to work only with the 4 precious stones. But they got a bit out of fashion and by accident I found a small slice ( I think they call it “slap” in English) and I made a nice necklace with it. Than I started to be more interested in Agate and do more creations with it, so that the beauty of the stone is optima. I even start a course to learn cutting and polishing. I am very excited but my children don’t like it at all. They want me in an elderly home knitting and boring. I am 80 and ZI like to do what’s interesting me. I even think of buying my own HighTech machine even if my children fell of the roof. I love agate and they won’t stop me.haha

[@mitchgillilan]

Great video Ariel. theres really only 2 kinds of banding.... concentric banding (circular bullseye pattern) and water-line banding a.k.a. gravitational banding (horizontal lines) We have so many rocks here in Oregon that are in between an agate and a jasper, or a mix of common opal and agate.... or a jasp-agate that is slightly translucent lol. Some rocks just dont want to be labeled!

[@AgateAriel]

Right it can definitely get tricky to identify the mixes! Those are usually the coolest looking ones too! 😅

[@1337Cassie]

Been thinking I was losing my mind lately trying to identify my rocks that are getting me confused by looking like mixtures of agates, Jaspers, and opals. Stinkin' Oregon rocks are so confusing! Lol I love them 🥰🥰🥰

[@jordanmjk0]

I got a few rocks from Vancouver and Montana just like that. Like they are jasper, but also a banding like an agate on half, and a petrified wood in the Alberta prairies that is like opalized or something, it’s so pretty.

[@hybridgoth]

The exceptions to this would be the types of layered yet seemingly non-concentric bands commonly seen in some lace agates ie. Blue lace agate. Similarly in plume agates; where bands may seem unidirectional. Typically plume agates are found to have orbicular inclusions when cross sectioned in the right direction "perpendicular to the flow of the mineralisation", however, they may have widely varying appearances dependent on the nature of their formation and the condition they're found in.

[@telemyztery]

Hi, when I saw your book rocks and minerals, reminded me of a small book that I have with the same name. I just found I still had it. Thanks for reminding me. So this little book is what led me to the love and collection of rocks, stones, gems and crystals 35 years later. I'm only into your video 1 minutes, but will definately watch the whole thing.

[@lauramarti7548]

Your video has the best explanation I have ever seen on what is an agate. I have shared your video with two of my friends who needed to know what they look like.

[@kahhhrahhh2478]

Thank you for this video! As a beginner this was super helpful! Definitely subscribed for more. 😊

[@keithwatson8228]

You're the kind of person that will make everybody happy to be around. I love your personality.

[@AgateAriel]

Thank you! 😊

[@keithwatson8228]

@@AgateAriel sorry that I keep leaving compliments. I hope I don't seem like a creep. Too bad you're married.

[@keithwatson8228]

@@AgateAriel I mean it's not a bad thing that you're married but I think you get it.

[@kimorbid]

I really enjoyed how you made this easy for those of us who are kind of slow learning especially with all the different thousands of types of agates LOL thank you so much for your hard work and your dedication. I just found your channel today and I absolutely love it!

[@AgateAriel]

I’m so glad it was helpful! Thanks for the kind compliment! 😊

[@tulazaz]

Wonderful video!!! Thank you so much. I am in northern Virginia where we have a lot of different quartz. I hope I can find you doing a video on identifying quartz from other similar rocks. I’m a newbie wanting to learn more.😊

[@lilmama4426]

WOW, this exactly what I've been searching for!! Best identification video I've come across! Thanks!😊

[@AgateAriel]

Glad it was helpful! 😊

[@gracekennings]

super presentation, and thanks for sharing your knowledge in a straightforward and engaging manner! You "rock"!

[@kirbycraft9325]

Thank you, great job with informative content. Fully enjoy hearing different people's experience, and I just enjoy looking at other LSA'S that I haven't seen before. The one Tube/Fortification agate is also called a Wrap-around agate; and that is an excellent example of one. I call them wafers when they are thin, or not very uniform with banding. I call them a sandwich when thick, or uniform "less common" in banding, but that's just me.

[@AgateAriel]

Oh I like that! Very cool the different terms for them!

[@bondgirl66007]

I’m just starting my rock collecting journey. Your videos are so helpful. I’ve found a few quartz, agates, jasper and my fave so far was a lovely striped piece of Picasso jasper.. so very cool finding out which rocks you have found.

[@AgateAriel]

Oh that is so cool! I’m glad my videos have been helpful! ☺️

[@GreeneGene33]

Very enjoyable video. Thumbs up! Thanks for the information and showing of your collection, love the fortification paint agate, BEAUTIFUL!!!!

[@AgateAriel]

Thank you! I appreciate it! 😊

[@chrishunt8130]

Very good explanation of identifying the different kinds of agates. A very beautiful collection.Thank you for sharing your knowledge.

[@AgateAriel]

Of course! Glad you liked it! 😊

[@autumnryn]

Hello to my fellow Minnesotan!! ❤ This definitely helps, and I will be getting that book!!! Great to know what to look for here!

[@RipMcShwaggins]

Thank you! Long story short, I have collected a litteral half ton of cool crazy AZ rock and minerals over the last year but haven't had time to learn what all these amazing stones are. I thought all my crazy agates were different kinds of rocks, and didn't know what my Jasper or calcedny was. You seriously just explained what probably half my rocks are to me in a very understandable way. Thank you again, you're awesome👏👏👏😁👍

[@a.t.nelson1670]

Thank you! I just thought if you can see through it, it was an agate. I have learned so much in this video that I, now know, I still have so much to learn about rocks in general. I will definitely be watching your vids. Having the examples to show what you were talking about was so great. Thanks again. Happy hounding! 🪨❤

[@chriscoplan815]

Hello from Texas. Bravo ma’am. Great video. Very informative.

[@AgateAriel]

Glad it was helpful!

[@photographybya7602]

This is one of my favorite rock videos ever.

[@mirasolpimentel2209]

Thank you for sharing your knowledge.I learned a lot.

[@GREEKEXPLORERS]

Nice video and congratulations to the thousand subscribers!! Thank you for sharing it with us!!

[@AgateAriel]

Glad you liked the video and thank you so much! 😊

[@loislois3526]

This video was really good and super helpful with loads of clear examples. I just found a spot with a ton of jasper and now I want to learn more about all the different types. Could you do more videos like this one and a special request- one with jasper ? Thank you !!

[@samuelfiore7949]

Such a great video for identifying agates , especially for those starting off.

[@AgateAriel]

Thank you so much!

[@hollykainz]

I'm a new sub. Very helpful, as I've been picking up some cool rocks right nearby. Wetting the stones really does show a lot. I'm getting better at spotting what I should pick up.

[@GDSavingThePast]

Well done Ariel, you definitely show your enthusiasm for agates and jaspers. I am now retired but spent my life creating custom jewelry and dealing in bullion so I have had the pleasure to work with some very cool gemstones. I just found you so I haven't looked through your videos but if you do not already do it you should consider getting into cutting cabochons. Even A simple flat lap setup could allow you to do a flat surface for viewing and with some soft backed laps you could do cabs on it or you could go all out and pick up a cabbing machine. Have fun GD

[@AgateAriel]

Thank you GD! Yes I have been looking into cutting and polishing tools other than my basic tumbler! It is definitely something I want to dip my toes in!

[@lisamills-wv6nc]

Thank you for all the info! Very helpful! 😊

[@robertschnobert9090]

Love the nail color 🌈 also great video of course haha 🌈

[@MNpicker]

This is a very good vid!! Lotsa good information.. people will learn from this🤓.. Congratulations on 1K subs👍

[@AgateAriel]

I’m glad you liked it-and thank you so much! 😊

[@sandraabshire4923]

WOW lots of great information! Only been to the MI upper peninsula once, before I knew about Lake Superior agates! Can’t wait to go back and do an agate hunt! Congratulations on 1k subs!

[@AgateAriel]

Yes that is one of the BEST places to go Rockhounding! I can’t wait to go again this summer! 🙌

[@sandmaker]

A really good and informative show. Lots of agates out there. Keep having fun.be happy, safe and stay healthy 😷⚒ Nice nails, glamorishious🤗

[@AgateAriel]

Haha thank you!

[@pablo6305]

Thank you cause I can't get a straight answer from anyone about identification on Facebook. Some of those people are so cl9sed mined and they have bunch of (cronies) that got me here so thank you for sharing knowledge and not narrow minded judgements.

[@dsbh2008]

Thank you algo for bringing me this video in my time of agate need

[@bdacolt6941]

Very informative video. As well as much appreciated. From a newbie..I might find some now. Or are least have a chance.

[@mariemoss2475]

A new subscriber... You explained things perfectly, I learned so much thank you 👍💕

[@AgateAriel]

Thank you! 😊

[@christineconley9810]

Thank you for sharing your knowledge with us beginners

[@AgateAriel]

Absolutely! 😊

[@karmakritik-marywolff]

I started making jewelry a few months ago & never realized how many different stones/crystals & fossils there are and how interesting it all is. 🤷‍♀️ who knew 😅 heading to the UP keweenaw in MI in a month to rock hound & I'm super excited. I have NO clue how to spot the good ones though. Thank you for making that a little easier for me :) very informative! 👍

[@AgateAriel]

Oh that is awesome!! You will find some great rocks up there! One tip is to go after it’s rained or by somewhere near water! Rocks really stand out when they are wet!

[@helencalnan.30]

Great Video.Now i must look and Find them.Very well explained.Well Done.

[@AgateAriel]

Thank you so much! 😊

[@hazeibarra1953]

Agate and jasper are both types of chalcedony. So saying they are different is not very accurate, as agate is chalcedony. Carnelian can also be banded btw, and again is also a type of chalcedony. Just a bit of misinformation but not at all your fault!💚 Edit: as for moss agate, it is not actually an agate, but a different variety of chalcedony with plume-like inclusions😊 I love your videos btw😁💚

[@mikek4443]

Thank you for the book recommendation ordered it right away.

[@AgateAriel]

That’s awesome! I hope you find as much use from it as I did! 😊

[@Nertz1000]

Awesome video. Thank you for sharing.

[@broski-nz3xn]

Great vid!

[@antralapina4377]

This video is the best for me because I found answers to my questions.

[@AgateAriel]

I’m so glad it was helpful! 🙌

[@Theresa-ZionRanch443]

Thank you. Very informative video. It helped me out a lot.

[@AgateAriel]

I’m so glad it was helpful! 😊

[@amazingdavon]

Thanks for sharing!

[@rogernico1972]

Very nice presentation,very helpfull!

[@jeryuen6563]

Hi how are you? I watched this video a few days ago as back ground, I truly enjoy your enthusiasm. Since, I have watched another video on a n unrelated topic and I have a hypothesis on how agates are born. I do not have anyone else to reach out to but if you are interested i would like to see what you think.

[@CityRockhounding]

Oh wow, so cool. I knew I had some agates, but didn't know what kind they were. Thanks so much, what a great video, very informative and helpful. It really helps to see examples like you do. I wish you could like the video more than once.

[@AgateAriel]

Well thank you! I’m so glad it was helpful! 😊

[@bhall7997]

congrats hitting 1k subs

[@AgateAriel]

Thank you so much! 😊

[@randynewman2467]

Good information. Thanks for sharing.

[@AgateAriel]

Glad it was useful! 😊

[@kelcritcarroll]

Great information!

[@AgateAriel]

Thank you!

[@suehanson2709]

Great video. 👍

[@easttennesseerocks]

Thank you friend

[@IllIlllI]

Watched the whole thing, wish it was longer!

[@AgateAriel]

Thank you!! So glad you enjoyed it!

[@sandmaker]

Thanks for the information, but I was a little confused. You had more than one with it being completely opaque but had layers and yo called them agate. To me they are all pretty rocks. Be happy, safe and stay healthy 😷⚒

[@AgateAriel]

Yes paint agates are completely opaque and are one of the only types of agates with this quality!

[@mindylee2056]

I’m new at this. The info was great to help me start out. I’m about to become a rock hounding fool. Can’t wait to see what I can find.

[@waynehaslam.thatwasawesome5464]

Awesome job on the video!

[@AgateAriel]

Thank you!

[@roxannetellini3134]

Very helpful. Thank you.

[@AgateAriel]

Glad it was helpful!

[@thomascaptain2190]

Great vid!Thanks for the knowledge. Do you spray your rocks with something because it looks half wet...

[@MrHotrodharry]

Great video to really help beginners

[@AgateAriel]

Thank you so much! 😊

[@lesleemichell5475]

Thank you, it was very helpful..

[@AgateAriel]

I’m glad you could find it useful! 😊

[@jakedrange7007]

Ok so I just started watching this lovely lady. Random thing I gotta point out. Befor she ever said she was from mn I knew she was either mn or wis she just looks like one of us and each video I watch she sounds more and more like one of us. Love these rock videos love agates I hope she keeps it up

[@bigbixiebigbitty7485]

Thanks for the informative video! One of my research colleagues (mathematics) is way up north at Michigan Tech University. I think I need to make up a reason to go and visit him and take an extra day to do some rockhounding on the shores of Lake Superior. - My offer of mailing more tumbling rough still stands - I've just got too much!

[@AgateAriel]

Oh absolutely! North Michigan is a great place for Rockhounding! I’d love to accept, I just don’t have a PO box yet! 😅

[@Aventuranaterradapedrapreciosa]

Very beautiful your collection of agates

[@AgateAriel]

Thank you!!

[@humdrumbeachbum]

Love this video! Agate hunting is one of my favorite hobbies when I go to the Oregon Coast, ever since I was a kid going with my dad (and of course hunting for other cool rocks wherever I go), and seeing another gal rockhound is awesome!!! I recently found a rock which has me a little stumped for a few reasons, which is what led me to your channel and clicking on this video in the first place... I THINK it may actually be an agate geode, which if so, is the first of its kind that I've personally found! I'd love to get your (or any other pros',) opinion on it, if you have any interest/way for me to send a couple pics. Just let me know if so! Either way, you've got a new Subscriber. :) Keep the stones rocking and rolling!

[@AgateAriel]

Thank you! It’s awesome to hear from another rockhound! Go ahead and send me a message on instagram and I can definitely take a look for you! Agate geodes are so awesome and would be quite an impressive find! 😊

[@barbarapennington9853]

I too am a female type rockhound living on the Oregon coast, I’m also a newbie as well. A few days ago I found a small rock about an inch and a half wide, and, after examining it, I was able to recognize it as a geode agate. Thanks to Ariel‘s great video. It also had a little botryoidal action going on inside the “window” which I saw with my designated “lady rockhound type magnifying glass”. it’s awesome and so satisfying to be able to “name that rock” Thanks Ariel

[@JordanPike]

Really great video! Thank you for the lesson :)

[@AgateAriel]

Of course!

[@Justin-ct6sn]

Awesome video. Thank you hun

[@goldenratio5117]

Just found a deposit in California , I need to polish them up. Great info!

[@AgateAriel]

Oh that’s awesome!!

[@goldenratio5117]

@@AgateAriel is there a way I can send you pics of the specimen pieces I have? I don't know if they should be cut, or just tumbled... I am good with using a diamond blade tile saw, or rotary rosin granite type polisher but never used a tumbler.

[@mattstanzil3072]

Thanks for the info. Live in West Central WI an my 8 year old an I just started rock hunting.

[@AgateAriel]

Of course! I hope it helps!

[@MdennisAK]

Great video

[@AgateAriel]

Thank you!

[@jeremiahwise668]

The rough journey peeler agate is super cool.

[@AgateAriel]

Thank you!! It is definitely one of my favs! 🙌

[@gemigirl5521]

Very helpful!

[@AgateAriel]

Thank you!

[@treasurehuntingscotlandmud9340]

great video

[@sarahmoon3237]

On the piece of chalcedony that you showed right before the carnelian agate when you told us to guess if it was an agate. You said it had no banding but I saw verryyyy light banding where you shined the light through. Idk if it’s my eyes playing with me but take another look at it! I think it has some banding!

[@AgateAriel]

Ohh I definitely will take a closer look! Good eye!

[@Badr_agate_kech]

Thank you

[@williamhanley7031]

I thought for a second this was someone identifying as an agate.

[@valerienelson1680]

Have any of those been tumbled? Or were they all natural with how they look right now?

[@colemeeker908]

This is a fun video for someone just getting into this stuff. Love your passion. So crazy how much you look like a friend of mine (also from MN). Do you have a sister by the name of Cassandra in San Diego?

[@AgateAriel]

Thank you! And no I do not! Maybe a doppelgänger!

[@themama3633]

Rocks are just like marbles. Different kinds, shapes, colors, names….. why do I get interested in things such as these two. More difficult more passionate about finding more and answers.

[@billfranks1905]

Good videos.

[@amberwright2116]

I love rocks

[@miked2125]

So your video helped alot. Thanks

[@AgateAriel]

So glad it helped! 😊

[@hybridgoth]

Fyi. Translucent chalcedony with dendrites are often typically called agates. Ie. Moss agates etc. However, It's important to note that opal, jasper, or, other rocks/minerals could also could contain dendrites. On another note; Plume agates are rarely found to be banded, but, more typically contain orbicular or striated inclusions indicative of the flow direction during formation. 🙂

[@AgateAriel]

Thank you so much for the info!

[@anupbk]

Thanks, very knowledgeable and insightful. And also, you sound almost like Penny Hofstader. 😂

[@AgateAriel]

Haha I’ve never heard that before! I’ll have to check it out! 😅

[@miked2125]

You are in Michigan? Wow, i am in San Antonio Tx and i find all of the rocks you show in this video all of the time when looking for rocks to tumble. Guess they are all over US.

[@AgateAriel]

Definitely! I am actually in Minnesota though!

[@jamiconroy7841]

Thanks so much!!

[@AgateAriel]

Of course!

[@CreativeSharing]

thank you...

[@AgateAriel]

Of course!

[@v4d3rm4n]

You rock..............

[@nativewildman9335]

Nice rock collection! You would probably love my collection of stones. I'm not sure what half of them are. I did make a video of some of them for KZbin. One of my favorite rocks is a dark olive green and you can see light though it I don't know what it is. Great video!

[@AgateAriel]

Oh that is awesome! I’ll have to check it out! Could be a green chalcedony!

[@nativewildman9335]

@@AgateAriel Cool it's kzbin.info/www/bejne/m3KUmGR4er2jbrs

[@2Goiz_1CuP]

K that answered like all my questions how did you know all the right stuff even??! ..& Again, I'll neva meet a girl that funny, efficient or effective 😂☺️. Thanx!🎈

[@AgateAriel]

Glad I could help!

[@brianmaney1973]

Bad form to "hit on" a KZbinr,. I love you, anyways... Thanks for the education!

[@allenhammonds8002]

Great vedio ....thanks 👍 And also you can put cookin oil on a napkin then wipe them ....wayy better than water ...js 👍

[@AgateAriel]

Oh that definitely would have worked better! Thank you!!

[@allenhammonds8002]

Very welcome ....very A .A. 👍👍

[@user-zi5fn7sb2k]

Total beginner and finding your videos super helpful! Are all of these rocks tumbled and polished?

[@AgateAriel]

Nope! Most are natural!

[@user-zi5fn7sb2k]

How do you clean/polish them?

[@fantastic9346]

The stone at 28:37 likely has banding on the inside. Everything on the outside would indicate that in my opinion. I have nodules with little to no banding that upon being cut open have banding. Also keep in mind that not all agates that are opaque are paint agates. Limonite agates or limonite staining can be opaque giving the illusion of a paint agate.

[@AgateAriel]

Awesome thank you! Maybe one day I’ll try to cut it open. Yes you are right I do sometimes forget about the limonite agates!

[@dreamlookautodetailingauto3353]

Very well presentation of variety of agates, etc...love people that know there rocks & take the time to explain the differences. Question...are your nails potatoe or orange peel agate? Noticed the pit marks...jk😉. Keep up the great work. Happy rock hounding! 🙂

[@AgateAriel]

I totally should do an agate style nail! 🤣 Glad you found the video helpful!

[@dreamlookautodetailingauto3353]

​@@AgateAriel😉🙂👍

[@_xxApolloxx_]

I think I found Agate about last week or so, but I can't exactly tell if it's agate oe not. It has banding (I think), but looking at it I think it may be Chalcedony or Carnelian. Btw how do i tell if they're bands or not.

[@rayhewitt6875]

For a second there I thought you said eggates. Lol

[@Theguybehindascreen]

This is like an actual class. But I like it

[@OccamsSledgehammer]

23:11 These last 2… to ME would be considered agate. Whatever is making the dendritic structure… could it change the definition if it goes throughout the entirety of the agate?