Got A Rock you Want Identified? Post it here! gimme a good picture or 3 or 4!

[Eu_citzen]

Hi and thanks for taking a look, yes it scratches but its hard to make a mark on it if you scrape away at it. It forms what looks like a dark grey ish powder.

Yup, seems about right! Galena it is!

 

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[Eu_citzen]

View attachment 1473704View attachment 1473705Did scratch test with a pocket knife.It scratched it, but it was the dark outer shell.Im guessing that is oxidation if thats the correct terminology. I then broke off an edge with a hammer ( after a few strikes ) revealing the shinier metal and it did not scratch it. Dont know if its useful info, but the weight is 1 lb 13 oz and the ruler reference to give you an idea. Its pretty heavy. It was found around KY/TN line.

Weathered or oxidized surface. Either works. Always test the freshly exposed surface, the oxidized surface may be made of different mineral(s).
Do a streak test next.

 

[Ozai]

Will crush it down and see what appears in the pan...

 

[paul75]

Yup, seems about right! Galena it is!

Thanks much appreciated ��

 

[.Maluenvy]

Is this a variety of quartz?

Just wondering if this is quartz and if so what type of quartz, or what it really is if not. Thank you alot. It is translucent and I can see thru it with a flash light,
it's clearish grey in color.

 

[OIC95]

Found this during a hike in a state park. It has small crystals formed in it. Any ideas??View attachment 1474556View attachment 1474557

 

[Nano]

Dear EU citizen. Your opinion please. Quite a bit of stone in this.All the same type of stone with bluish grey staining. What is the best way forward with this piece?
Clean or dirty? I would have thought it a slag remnant if the stone in it had any variation.But no variation. Teeny weeny garnets on it.The mineral inclusions look encouraging to me. Way cool.
I have only seen garnets on schist here before.But this white stuff looks like quartz. Cheers man

This is a next day update.I found something much rarer than gold or silver that could change our idea of how long intelligent life has been on the planet.I have only heard about this in legends but didn't dare to believe it was true.

Fossilised cheese.

An ID wanted for these groovy nodule things please.One white,one blue and one red.I am thinking agate possibly? Thanks.

 

[th&m]

results from vinegar

Put some vinegar on it and see if it bubbles and fizzles. If it does, limestone.

The white outer layer fizzles the black inter don't.

th&m

 

[Pignated]

I recently bought the rocks on a trip to South Dakota. They came in a big box that you could pick from. The first too were labeled tigers eye but it looked nothing like tigers eye I saw when I looked it up. It actually reminds me of some Jaspers. Could you tell me what these are (number them 1-4)

 

[Eu_citzen]

Just wondering if this is quartz and if so what type of quartz, or what it really is if not. Thank you alot. It is translucent and I can see thru it with a flash light,
it's clearish grey in color. View attachment 1474510View attachment 1474511View attachment 1474512

Quartz. Just plain old quartz.

 

[Eu_citzen]

Found this during a hike in a state park. It has small crystals formed in it. Any ideas??View attachment 1474567View attachment 1474556View attachment 1474557

Syenite or something similar.

 

[Eu_citzen]

Dear EU citizen. Your opinion please. Quite a bit of stone in this.All the same type of stone with bluish grey staining. What is the best way forward with this piece?
Clean or dirty? I would have thought it a slag remnant if the stone in it had any variation.But no variation. View attachment 1474699View attachment 1474700 Teeny weeny garnets on it.The mineral inclusions look encouraging to me. Way cool.
I have only seen garnets on schist here before.But this white stuff looks like quartz. Cheers man

This is a next day update.I found something much rarer than gold or silver that could change our idea of how long intelligent life has been on the planet.I have only heard about this in legends but didn't dare to believe it was true.
View attachment 1475318View attachment 1475320
Fossilised cheese.

An ID wanted for these groovy nodule things please.One white,one blue and one red.I am thinking agate possibly? Thanks.
View attachment 1475329

A well made slag will be homogenous. Look for "gas bubbles", which typically indicate slag. A glassy look on a broken surface is also common, but not always so.
Depends on what they melted.

Re: Cheese. I wonder if the expiry date has passed?

Agate are more often waxy. Polished pieces are not. Look for banding.
Test hardness with quartz. Can't see enough details to help with those.

 

[Eu_citzen]

View attachment 1475431View attachment 1475431 I recently bought the rocks on a trip to South Dakota. They came in a big box that you could pick from. The first too were labeled tigers eye but it looked nothing like tigers eye I saw when I looked it up. It actually reminds me of some Jaspers. Could you tell me what these are (number them 1-4)

1-2 might be jasper or skarn-ish material.
The last one might be pyrite.

Can't give off a proper guess on the others. Polished pieces are tricky!

 

[bock]

Can you help me to identify what type of rock this is and the environment it came from? distinct features include dark blue, black and white rings* between the smooth black hard crust and solid dark orange core. Pores on the crust as well, some filled with what I expect to be dirt

 

[Nano]

Dear EU citizen.Firstly hope I am not being a drain with all my questions.Feel free to tell me if I am. I will understand.Me and my bad photos and almost zero knowledge like an irritating child. That aside. This ore piece does have some visible gold in it but really small wire gold weaving around this purple stuff that is like lots of thin sheets on top of eachother.Like puff pastry that didn't rise well cos some complete tool opened the oven too early, but purple and heavy. Not magnetic at all. But I had assumed iron of some form. But I am wrong 50% of the time about virtually everything.Not just rocks. Thanks again mate and hope I am not being an annoying pest.Peace


This black and white nodule thing of some weird flint?.Sets off the goldbug on non ferrous. One broken side is pitch black.Am I looking and silver oxide in flint? Or am I completely off? Cheers man.

 

[Pignated]

This rock I found in some decorative pebbles outside. It leaves a brownish blackish mark when I hold it it looks a bit browner in real life then in the picture thank you

 

[Eu_citzen]

View attachment 1475541

Can you help me to identify what type of rock this is and the environment it came from? distinct features include dark blue, black and white rings* between the smooth black hard crust and solid dark orange core. Pores on the crust as well, some filled with what I expect to be dirt

Could be a concretion of some sort? Uncertain. Those are typically found in sedimentary rocks.

 

[Eu_citzen]

Dear EU citizen.Firstly hope I am not being a drain with all my questions.Feel free to tell me if I am. I will understand.Me and my bad photos and almost zero knowledge like an irritating child. That aside. This ore piece does have some visible gold in it but really small wire gold weaving around this purple stuff that is like lots of thin sheets on top of eachother.Like puff pastry that didn't rise well cos some complete tool opened the oven too early, but purple and heavy. Not magnetic at all. But I had assumed iron of some form. But I am wrong 50% of the time about virtually everything.Not just rocks. Thanks again mate and hope I am not being an annoying pest.Peace
View attachment 1475692

This black and white nodule thing of some weird flint?.Sets off the goldbug on non ferrous. One broken side is pitch black.Am I looking and silver oxide in flint? Or am I completely off? Cheers man.
View attachment 1475965

The first stuff you describe sorta reminds me of lepidolite. Probably way off, since I can't see anything other then blurry-ness.
Lepidolite is very soft, in fact so soft, a knife will scratch it. Test that.
It is however not heavy, in which case another mineral in the rock would have to add to the "heft" of the rock.

Bornite often gets a purple tarnish quickly after exposure to air. Has a metallic luster, unlike lepidolite.
Is also scratched with knife, but a streak test will give a blackish mark. Those are possible candidates I can think of.

Can't see in your second pic either. My limited experience with silver-minerals are they're often pitch-black.
Do a hardness and streak test. Oh, and see if you can't find the book: "Prospecting for gemstones and minerals - John Sinkankas".
That'll help with a few stupid questions.

 

[Eu_citzen]

This rock I found in some decorative pebbles outside. It leaves a brownish blackish mark when I hold itView attachment 1475735 it looks a bit browner in real life then in the picture thank you

Very few minerals give off marks just from handling them. I'd guess graphite due to that.

 

[Nano]

The first stuff you describe sorta reminds me of lepidolite. Probably way off, since I can't see anything other then blurry-ness.
Lepidolite is very soft, in fact so soft, a knife will scratch it. Test that.
It is however not heavy, in which case another mineral in the rock would have to add to the "heft" of the rock.

Bornite often gets a purple tarnish quickly after exposure to air. Has a metallic luster, unlike lepidolite.
Is also scratched with knife, but a streak test will give a blackish mark. Those are possible candidates I can think of.

Can't see in your second pic either. My limited experience with silver-minerals are they're often pitch-black.
Do a hardness and streak test. Oh, and see if you can't find the book: "Prospecting for gemstones and minerals - John Sinkankas".
That'll help with a few stupid questions.

Cheers for the book tip. Thanks again. As for the puff pastry one. I think it is a micaceous aggregate of hematite.Just never seen it in that form before. The streak is more rusty orange than red.But micaceous formation of hematite is the best I can come up with. As for the other bit of weirdness.Tried scratching it with a knife and it just transfers stainless steel to the white stone. Scratch test only produces a streak from the black bit which is grey.Pretty heavy and hard. Quite a hard area to work with a goldbug. Lots of rocks go off in non ferrous and slag is just everywhere.Had more luck with using eyes than a detector here.Just too much sets it off. Weird area.Pretty cool though.Peace