Crystal Habit, Mineral Color, Luster, Cleavage, Hardness, Density, Solubility- Mineralogy | GEO GIRL

[@keelyfitz5512]

As someone who is fascinated by minerals and almost cries of joy whenever i talk about them, i love this so much

[@GEOGIRL]

Yay! So glad to hear there are others like me out there!! ;D

[@jimmymcgill2557]

@@GEOGIRL 14:10 - great video! 👍🏻 with regards to Conchoidal fracture due to not having a crystalline structure how would you describe Quartz as that doesn't have cleavage but fracture but is still a crystalline structure?

[@nimmie6292]

I am a biologist and not even study mineralogy. Still I am super intrigued by the mineral world and collect all kinds of beautiful pieces. Thanks for this informational videos which helps me identify more specimens!

[@cristiancontreras6649]

I’m a chemistry undergraduate student, want to become a geochemist and this very first video explained what I really want to learn about minerals and that branch of geology, thanks a lot!!! subscribed and liked :D

[@GEOGIRL]

So glad to hear that you found what you needed with this video! Also so happy you subscribed and liked, thank you so much! Best of luck with your chem/geochem degree ;D

[@kathleennelson6692]

PLEASE make a game to play for youngsters and adults to learn this wonderful information. Matching, shapes, ANYTHING!!!!

[@GEOGIRL]

Oh wow, what a great idea! I will write that down and see what I can come up with ;D

[@enriqueymaz6302]

I truly enjoy your videos, i have been a rockhound since childhood and still am at 75 , keep up the excellent work you are doing by giving away knowledge in very friendly fashion. Congrats

[@corakesterson6693]

this is so inspirational! can you teach my grandpa how to use the internet? 🤗

[@do_gotcha]

Flashbacks to my mineralogy and crystallography final. 7 blue minerals, some of which we had never really seen in blue before, all in a row... lol, great class though. Love the video as usual!

[@GEOGIRL]

Thanks so much! And haha I know how you feel I have been having the same flashbacks since starting to work on this playlist! LOL

[@pierreproudhon9008]

As someone with bad geometry, I find your explanation or cleavage planes much more clear than that of my professor’s. Always wondered how come if there are two planes, the thing is a RECRANGLE but not just two planes!😍🇺🇸

[@GEOGIRL]

Thanks! I am so glad you found it helpful! :D

[@TheRockhoundLife]

I am so jealous of your pronunciations. Every single one is on point. Doubt I’ll reach your level but maybe one day! (Excellent video btw).

[@GEOGIRL]

DON'T SAY THAT!! You can and WILL reach my level and BEYOND!

[@FreeConscience2]

Very nice introduction. Thanks. Looking forward for the rest of this theme. If ever ... you consider collaborating with an astrobiologist, then I would love to hear you explain the mineral deposits of microbial communities. I wish you all the best.

[@GEOGIRL]

Actually I study astrobiology! And I plan to come out with an astrobiology playlist in the future, thanks for the topic suggestion! :)

[@FreeConscience2]

@@GEOGIRL So, I assume that you are familiar with the seasonality of the smoke/vapour released by Arsis mons on Mars!? I'd love to hear your thoughts on this subject.

[@GEOGIRL]

@@FreeConscience2 Yes so cool! I am no expert on Mars, but I will for sure try and cover that topic in the future :)

[@SpeedOfTheEarth]

@@GEOGIRL That's so cool, yay!

[@derekmoore1387]

This is helpful to have some vocabulary for concept art, when looking for specific examples. Thank you for the concise and informative video!

[@GEOGIRL]

Oh wow, concept art, that's so cool! So glad you found the video helpful :D thanks for letting me know!

[@krrr.4902]

OH HECK YEAH LET'S LEARN STUFF!! Perfect playlist to clean my house to 💖

[@omrigoldfarb142]

Great explanation Can really see the passion for the subject and that helps a lot when learning

[@GEOGIRL]

Thank you! I am so glad my passion comes across and helps convey the concepts ;D

[@navneeth.r.r7827]

Need more geology related videos from you... Very useful and informative... Helped me a lot 🙏🤝

[@GEOGIRL]

Yay! I am so glad you have found my videos helpful! Don't worry, geology related content is what I do ;)

[@genghisgalahad8465]

My favorite characteristics, of course, being 12, apparently, are luster and cleavage. One of my favorite light interaction qualities is chatoyancy in tiger's eye!

[@humancracythehumancratsmkb4034]

You are doing a great favor to students, your speaking speed requires attention, could be a bit slower, will give the students better chance to understand you .

[@mukhtaralbuali9414]

Is the series over, or a WIP? Just making sure if I need to look elsewhere after this playlist.

[@GEOGIRL]

I've stopped posting to it for now, but I plan to eventually do more videos on mineralogy, it just may be a while because I need to learn more things haha. If you have any topic suggestions, I'd be happy to hear them :) Thanks!

[@Mathilde_Moksha_333]

This video is a gem ! 😂 But really, it demystified minerals for me in a way I never could fathom before ! Thank you very much !

[@GEOGIRL]

You're welcome, I am so glad you found it helpful! :)

[@arjunsonkar4308]

thank you😊

[@KingStarM1]

Thanks 👍 for this Video I have a test tomorrow 😌

[@captaincodpiece3263]

I still have my display box of different minerals and crystals I got as a teenager

[@geolyst]

Amazing content. Thank you! :) Please consider buying a better microphone. 40 bucks on Amazon should already sound much much better.

[@JoesFirewoodVideos]

I’m sure you have but have you heard of the HUGE crystal cave in I believe in mine in Mexico that had crystals over 100’ long? I saw it National Geographic channel

[@GEOGIRL]

I think there are multiple crystal caves in Mexico, so I am not sure I know the exact one you are talking about, but I will go look on National Geographic, it sounds really awesome! Thanks for the comment ;)

[@JoesFirewoodVideos]

Yeah it kinda looks like Superman’s home. It’s so hot (120 degrees and 100% humidity) there that they have to wear special cooling suits and can’t be in there for more than a half hour. They’re like at least a foot in diameter and a white/clear color.

[@canadiangemstones7636]

Clear colorless gypsum crystals the size of telephone poles. Surely the greatest mineral discovery of its kind, and it was preserved, not mined. Made headlines worldwide. Deep underground in Mexico, so hot and humid that cooling gear has to be worn.

[@rustymakely1057]

Wow really interesting, and I’m a total clay nerd , I like geology, but I’m a potter so ya I love clay , I’ve made a living off of clay for about 40 years, I liked and subscribed, I’m going to watch the next videos on clay , I’m wondering if you touch on porcelain clay , my favorite, and how it can be translucent when fired , O probably not , anyway thank you very much for your videos.

[@JoesFirewoodVideos]

Should be interesting video. I ❤️ GEO GIRL

[@GEOGIRL]

Thank you, I hope you enjoyed it!

[@JoesFirewoodVideos]

I did! Thanks for making it.

[@VV-fl8fi]

Hi Geo girl, it's lovely to find your channel ! I am a student studying gem in China and I have a question cause according to our textbook it says that it is Flourite missing F-ions that leads to a purple color. I wonder if you could explain more on that? thxx:)

[@GEOGIRL]

Yep, that is precisely what I showed with the blue example! :D It is the same concept with purple and green fluorite, the missing F ions (or the vacancies) in the atomic structure cause it to interact with light differently, causing it to reflect different wavelengths of light which gives off different colors. Fluorite can be a variety of different colors, commonly purple blue or green depending on the amount and pattern of these vacancies or missing F ions :) I hope that helps! Thanks for the comment and best of luck with your studies :D

[@VV-fl8fi]

@@GEOGIRL Thanks a lot!!

[@CaptainMir]

Nice 👍 video

[@GEOGIRL]

Thanks so much!

[@cerberaodollam]

The range of visible light is narrow as hell. Why are we blind to the vast majority of light type stuff?

[@GEOGIRL]

Great question! I have no clue, it's just the way we evolved I guess. I mean I don't think seeing any of the other wavelengths would be that advantageous for us given our lifestyle, so I guess it just didn't happen :)

[@cerberaodollam]

@@GEOGIRL seeing ionizing radiation might help avoid it, thermal detection could be a way to find edible animals, but maybe the tradeoffs or energy costs were too high. This again shows that we weren't engineered by a mind lol

[@SiriusSphynx]

​​​@@cerberaodollamWhy do assume some mind would think the way you do? Physics itself isn't inclined or required to make sense to you and that's not treated with such shallow skepticism. Such an r/athiest cringe take.

[@mi4208]

Great and thank you 😊❤️😊

[@GEOGIRL]

Thanks, I am glad you liked it!

[@mi4208]

@@GEOGIRL please make video on Optical mineralogy I am really bad in it

[@GEOGIRL]

@@mi4208 Yes, of course I will, I will start working on it as soon as I can :)

[@SiX1SE7EN]

love this!

[@GEOGIRL]

Thanks! I love to hear it! :D

[@deepakgehlot8204]

Please make video on magnetostratigraphy and chronostratigraphy

[@GEOGIRL]

Sure, I will work on that!

[@uuserwxyz]

Mam, I have a question You said that in fluorite the vacancies are filled with electrons to balance the charge will it make the mineral paramagnetic? If yes, then will it show magnetism like the iron minerals?

[@SpeedOfTheEarth]

So isn't specific gravity just density? Or am I wrong? Edit: I love your glasses

[@GEOGIRL]

haha thanks :) also you are correct, it is very similar to density, and it is actually sometimes referred to as relative density. They have couple differences though. Density is mass per volume and has units. However specific gravity (or relative density) is a relative term (a ratio of densities) and does not have units. Hope that makes sense.

[@SpeedOfTheEarth]

@@GEOGIRL Yes it does, thanks for the explanation

[@Mathilde_Moksha_333]

Hello ! I don't know from what country you are, though here in France « densité » translates to « relative density » and « masse volumique » translates to « density/volumetric mass ». So maybe it's just the language :) Have a good day !

[@GEOGIRL]

@@Mathilde_Moksha_333 Interesting! I am from the U.S., but what you said makes sense because density is also known as volumetric mass or specific mass. Thanks for sharing, I love to see where my viewers are from and how the languages compare, very cool! :)

[@SpeedOfTheEarth]

@@GEOGIRL I'm from germany and we don't have those two distinct words. We just have "Dichte" (density).

[@howardland2928]

Excellent

[@ahmadmujtaba3339]

keep smiling 💐

[@bandilla7317]

Thnks ma'am for this vedio very nice god bless

[@GEOGIRL]

You are very welcome, I am so glad you found it helpful ;)

[@bandilla7317]

@@GEOGIRL ok ma'am Thnks yuo'r very simply and talented to discuss all information that I need regarding the kind and classification of crystal and there hardness Thnks you for them information ma'am god bless u.

[@TheFutureTutor]

Amzing mam🤩. I am from india and become your fan

[@GEOGIRL]

Thanks so much, I am glad you are enjoying this mineralogy playlist, I will try to add more to it in the future ;)

[@faramund9865]

This is very useful, thank you. And I’m sorry but I heard: “My nude inclusions”.

[@4c6r]

شكرا دكتور ع الرابط 🙏

[@canadiangemstones7636]

8:39 It’s fluorite not flourite lol, sorry to nitpick.

[@GEOGIRL]

Yea, I know I noticed that after, my bad haha ;)

[@misstabbyfayephillips7711]

Hi

[@brookebatten4988]

Do you want a job? Out lab would love to have you.