What's My Rock? #7 - a rock identification show

[@jeanniehoffman2769]

I LOVE ❤ this channel! Super excited that I correctly identified botryoidal and dendritic properties. However, the last specimen looked like a petrified pickle.😂

[@mastdenman]

That first rock looks like fire agate which can have some flash in it like opal does. There are sites in the Mohave where this can be found.

[@BrettVarve]

Not a "fire agate" but certainly agate/chalcedony, which are varieties of micrcrystalline quartz.

[@canadiangemstones7636]

1) Chalcedony rose; 2) a marble; 3) priceless Red Bartifact

[@OhioEddieBlack]

I think the important thing to acknowledge is: finally someone who doesn't think they have a meteorite LOL

[@thegatesofdawn...1386]

I love the painted sandstone! 🎨

[@hapsate]

I want to see more rock ID videos! I pick up rocks on the beach frequently and have NO idea what they are.

[@robertrhoades983]

The betrothal one I find them like that and some are fire agates

[@RickSmith-kp3sy]

The round one was maybe an old clear glass marble, a common find in creeks/washes. It would explain the millions of bubbles he saw before he polished it as well. Also might explain the fracture in it.

[@thegatesofdawn...1386]

Bart Forbes, Western painter from the 80's.?

[@denttech2515]

Just looked him up. This definitely looks like his style. 23:07. You can barely make out an F, following Bart. Looks like it could say Forbes. Good call

[@blakebufford6239]

I Don't know the artist but based on the style and colors etc it's not very old.

[@dvincent137]

The cucumber looking stone looks like a tool which is used to chip stone to make arrowheads and spear heads.

[@artistnumber12]

Could lightning be involved in the sandstone branches?

[@tectonic_city]

I'm not aware of that mechanism. dendritic crystal growth is something we can recreate in a laboratory, so we don't need to invoke an exotic process like lightning. also lightning would melt the rock; in fact there are naturally occurring rocks called fulgurites which are known to be generated by lightning strikes (and they aren't dendritic)

[@artistnumber12]

@ very interesting.

[@artistnumber12]

Ok but what if I really truly believed it was caused by lightning because I feel strongly it to be true? How about now? 🤭😝

[@sdmike1141]

“Botryoidal”…a word that seeing it spelled out is of little help to pronounce it!🤣. Great content!! Learn lots per episode. Thanks.

[@matthewgardenstheglobeboec7153]

Chalcidony Rose with fire agate inclusions (manganese), marble or glass door knob pull, dendritic art, fused rhyolite.

[@slappy8941]

I have an interesting rock that I found in the desert of Saudi Arabia. It's round, with a concave depression on the bottom, and it's vitrified, with a fairly smooth surface.

[@sarahb.6475]

I knew that last one was volcanic! 😊

[@gregoryhancock-l1r]

The round ball is glass, they were used as a gravity stopper for 18th century water bottles that were being stored or shipped, the neck of the bottle was pinched and the ball served as a stopper 👍👍

[@tectonic_city]

interesting! so it may be an antique!

[@gregoryhancock-l1r]

@@tectonic_city yes, mudlarks love to find these bottles , especially with the glass ball still in it👍

[@connifilteau2678]

Looks a bit like a codmarble, often found by Scottish mudlarkers, though smaller.....but everything's bigger in the US, ha Thanks for Geology conversations, great show.

[@tectonic_city]

I learned two new words in this comment :)

[@kathrynralli4557]

Sand stone, compacted saw dust from cutting down giant trees!

[@denttech2515]

First one looked like fire agate, without visible fire. If so, the red would be iron oxide

[@artistnumber12]

Preconceived notions die hard

[@kathrynralli4557]

The ball is an old marble.

[@barbaraeidinger6826]

I think it might be a piece of a broken mural, demolished and built over. Fancy bank building mural.

[@Airroll777]

put a light behind the orb How can you see anything without a light!I am alot older than you are!

[@kathrynralli4557]

The last one is a tool, and river rock, probably petrified Jasper wood.

[@thegatesofdawn...1386]

What if you wet the quartz ball with water to get a better look inside. The outside looks pitted like an old piece of beach glass.

[@tectonic_city]

the frosting would still make it difficult

[@yaonyaon9460]

The younger man: If it was done in the 1800s they didn't have conventional paints back then... The elderly man: Or brushes... Da Vinci and all other European Renaissance and Protorenaissance painters: Mind you? Care to elaborate on what we didn't have exactly before the 19th century?! Were we drawing our masterpieces with a lettuce leaf and chicken poo?! Seriously America? Culture and art existed long before your country!

[@olsim1730]

Dude..as a scientist you could have given a better simple explanation of fractals. They are pure mathematics. Not some "hippy" thing

[@tectonic_city]

I make no apologies for not knowing anything about the mathematics of fractals