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mihailovici179

identification help

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Please help me to identify this rock. I hope these pictures will help you.

unknown+020.jpg

unknown+017.jpg

unknown+019.jpg

I think this part is calcite (FOV 8 mm):

unknown+024.jpg

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Thanks Kovage, but this sample is not magnetic, so, I dont think is magnetite.

Mihail

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This chart for metallic minerals may help with IDing your specimen, you can click on the mineral name after choosing a possible mineral which will take to the page for that mineral with a lot of info and pictures to help decide if it is the correct mineral.

There are only about 6 that fit your streak and hardness.

http://www.webminera..._hardness.shtml

If it's not metallic, here the list of charts for other types of minerals.

http://www.webmineral.com/determin.shtml

Skip

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Please helm me to identify this:

Hardness: 5 -5.5

Streak: brown

unknown+003.jpg

Thank you

In fact, harness is under 3-3.5. Sorry for my fault.

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Mihail-

I wonder if that could be sphalerite? It's a zinc mineral. I used to have a really nice specimen that came from the Elmwood mine in Tennessee and it looked something like that you have. It's hard to judge the color of that specimen since they can all show up differently on the moniters. What is the actual color of that specimen and does it give a brown streak or a brownish red streak? That can make all the difference in the world.

Steve

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Thank you Steve :rolleyes: , I think is sphalerite, too. I though is cassiterite, but I was wrong, because is not so hard. The streak is brown so I think you`re right again, like usual :miner: .

Mihail

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Mihail -

I'm not a geologist and I'm not always right. :twocents: Just a plain old rockhound.. I try and do my best with the pictures shown and whatever details are given. Some of these rocks are unrecognizable to me... Reno Chris has more knowledge then I ever will and wish he could help on those...

Steve

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Your first 2 rock photos look a lot like stones which got shattered in a volcanic blast, then filled in with some kind of cryptocrystalline quartz.

post-21285-0-04601500-1328997870_thumb.j

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Hey guys.

I think these crystals are aquamarine. Am I wrong?

aquamarine+003.jpg

aquamarine+007.jpg

aquamarine+009.jpg

And pyrite???

pirita+brazilia+001.jpg

Thank you?

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G'Day Milhail

I think the first images are calcite, clear and blue and the last one is definitely pyrite

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Mihail-

Not sure about the first one but the shape of the crystal on the second photo makes me think its aquamarine. Can do the simple vinegar test to check for calcite. Calcite will slowly start to bubble upon contact. Aquamarine will not. Let me know.

Nice pyrite sun.... :thumbsupanim

Steve

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I`ve used vinegar and .... no bubbles; so, I think is aquamarine. Thanks again.

Today I`ve found this rock, limestone, what suppose to be the grey part? Look like a bone, but I don`t think so :hmmmmm:.

Thanks again :)

calcar+008.jpg

calcar+007.jpg

calcar+009.jpg

calcar+006.jpg

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Honestly don't know. It does resemble something but this is a G rated forum so I'm not going there. :hahaha: Is there some history of fossils being found in that area? If not, I would say it isn't.

Steve

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I did some tests of strength and visual, so I concluded that it is chert :tisk-tisk: . :grr01: I`ve scratched my finger in a piece of this chert, it is very sharp. :hide:

Mihail

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Hey guys. I need help with ID of some rocks that I found in the same place with kyanite. I guess what these are but I want to know for sure. :miner:

1. The little red spherical crystal in granite??

unknown+004.jpg

2. Metamorphic rock with some quartz?

unknown+023.jpg

3. Dacite????

unknown+029.jpg

a little closer:

unknown+028.jpg

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