FMF - Friends of Minerals Forum, discussion and message board

Here's a picture where you can sort of see the lines inside and the crystal bits.

Looks like water worn calcite with long gone chips of other included "stuff" that has eroded out.

Put your specimen in household vinegar for several minutes and it should fizz. BOB
...

Bob and LAB - do you think it might be Quartz with Tourmaline in it? I wouldn't expect calcite to be quite so shiny and, if calcite, I would expect a pebble to show at least some evidence of damage f ...

Thank you Bob. That makes so much sense now that I think about it!

Hey everyone.

I found this rock in the yard. I live on a bluff next to the Wabash River so mostly a limestone area. I started shining it up and realized I wasn't really sure what it was. I've Goog ...

Is this one thing or two things? The brownish stuff - is it attached to the white stuff behind it?

From your photo, I would say that the brown stuff is pyrite - fool's gold - an iron sulfide. The ...

This appears to be calcite, but there are both white parts and brown parts in your photo. You can do several things to test it. Break a piece off and see whether it breaks into diamond-shaped pieces ...

Sorry I was trying to attach the other pics. This is 4 or 5 pieces yes!

pic 2

Hi everyone.

My husband works at an underground coal mine in Southern Indiana and always brings me neat things home. There was a fall last week and he brought me home my first (like 50 pcs) of wha ...

Author	Message
Topic: Stumped. Help with identifying
LoveAlwaysBlake Replies: 10 Views: 10210	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 30, 2020 16:36 Subject: Re: Stumped. Help with identifying
LoveAlwaysBlake Replies: 10 Views: 10210	Here's a picture where you can sort of see the lines inside and the crystal bits.
Topic: Stumped. Help with identifying
LoveAlwaysBlake Replies: 10 Views: 10210	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 30, 2020 16:30 Subject: Re: Stumped. Help with identifying.
LoveAlwaysBlake Replies: 10 Views: 10210	Looks like water worn calcite with long gone chips of other included "stuff" that has eroded out. Put your specimen in household vinegar for several minutes and it should fizz. BOB ...
Topic: Stumped. Help with identifying
LoveAlwaysBlake Replies: 10 Views: 10210	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 30, 2020 16:22 Subject: Re: Stumped. Help with identifying.
LoveAlwaysBlake Replies: 10 Views: 10210	Bob and LAB - do you think it might be Quartz with Tourmaline in it? I wouldn't expect calcite to be quite so shiny and, if calcite, I would expect a pebble to show at least some evidence of damage f ...
Topic: Stumped. Help with identifying
LoveAlwaysBlake Replies: 10 Views: 10210	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 30, 2020 07:14 Subject: Re: Stumped. Help with identifying.
LoveAlwaysBlake Replies: 10 Views: 10210	Thank you Bob. That makes so much sense now that I think about it!
Topic: Stumped. Help with identifying
LoveAlwaysBlake Replies: 10 Views: 10210	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 29, 2020 19:28 Subject: Stumped. Help with identifying
LoveAlwaysBlake Replies: 10 Views: 10210	Hey everyone. I found this rock in the yard. I live on a bluff next to the Wabash River so mostly a limestone area. I started shining it up and realized I wasn't really sure what it was. I've Goog ...
Topic: Long time listener.. first time caller. Gifted from underground coal mine
LoveAlwaysBlake Replies: 7 Views: 8039	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 29, 2020 19:07 Subject: Re: Long time listener.. first time caller. GIFTED FROM UNDERGROUND COAL MINE
LoveAlwaysBlake Replies: 7 Views: 8039	Is this one thing or two things? The brownish stuff - is it attached to the white stuff behind it? From your photo, I would say that the brown stuff is pyrite - fool's gold - an iron sulfide. The ...
Topic: Long time listener.. first time caller. Gifted from underground coal mine
LoveAlwaysBlake Replies: 7 Views: 8039	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 29, 2020 19:04 Subject: Re: Long time listener.. first time caller. GIFTED FROM UNDERGROUND COAL MINE
LoveAlwaysBlake Replies: 7 Views: 8039	This appears to be calcite, but there are both white parts and brown parts in your photo. You can do several things to test it. Break a piece off and see whether it breaks into diamond-shaped pieces ...
Topic: Long time listener.. first time caller. Gifted from underground coal mine
LoveAlwaysBlake Replies: 7 Views: 8039	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 29, 2020 19:03 Subject: Re: Long time listener.. first time caller. GIFTED FROM UNDERGROUND COAL MINE
LoveAlwaysBlake Replies: 7 Views: 8039	Sorry I was trying to attach the other pics. This is 4 or 5 pieces yes!
Topic: Long time listener.. first time caller. Gifted from underground coal mine
LoveAlwaysBlake Replies: 7 Views: 8039	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 29, 2020 19:02 Subject: Re: Long time listener.. first time caller. GIFTED FROM UNDERGROUND COAL MINE
LoveAlwaysBlake Replies: 7 Views: 8039	pic 2
Topic: Long time listener.. first time caller. Gifted from underground coal mine
LoveAlwaysBlake Replies: 7 Views: 8039	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 29, 2020 18:37 Subject: Long time listener.. first time caller. Gifted from underground coal mine
LoveAlwaysBlake Replies: 7 Views: 8039	Hi everyone. My husband works at an underground coal mine in Southern Indiana and always brings me neat things home. There was a fall last week and he brought me home my first (like 50 pcs) of wha ...