Geology general thread

rocks make for some real avant-garde reaction images

>>8060330

What a time to be alive...

I'd like to see this reach mega [math]\mathcal{MEME}[/math] status.

>>8060330
Yes...

>>8060316
you gotta scratch test that nigga, anon.

do you have a hand lens, what kind of cleavage you got there?

any fractures? hows about a fresh surface if you want any kind of ID

>>8060316
I too, am interested in rock identification, since Im learning about different rocks now.
http://www.minsocam.org/msa/collectors_corner/id/rock_key.htm


Since were on the topic of geology, Im currently reading

https://www.wbez.org/shows/curious-city/building-skyscrapers-on-chicagos-swampy-soil/6a18eb6f-95d0-4829-9fb5-56154e9ef0ae

an interesting topic, considering how import the load bearing factor of soil is.

>>8060316

Looks like some ore mineral, maybe some slightly weathered pyrite? Scratch it with a coppercoin, a knive and a piece of quarz. Tell us which material scratches the mineral and which are scratched by the mineral.Maybe show us the streak color, if you don't have a white scratching plate, use the rough stripe on the bottom of ceramic plates or cups.

>>8060316
>Geology general thread
>general
Don't do this. You came to ask a question and it's perfectly fine. No need to make a general for that, where you clearly have no intention to discuss geology in general.

Anyway, my guesses are either rhyolite or quartzite as the base and who knows what are the bubbles. The most I can tell from looks, it's possibly some kind of metal.

File: Geologist's weapon of choice.png (508KB, 1020x875px) Image search: [Google]

508KB, 1020x875px

my guess is iron-containing slag, given the bubbly surface, the shiny glints, and the reddish staining on weathered surfaces.
where'd you find it?

File: 1280px-Pitchblende_schlema-alberoda.jpg (688KB, 1280x952px) Image search: [Google]

688KB, 1280x952px

>>8061613
Possibly, could also be Uraninite.
Testing process is as follows:
Insert bulbous granule in rectal cavity for 12 hours
Initiate colorectal scan 6 months later. If positive you are a rich man!