This is a rock from Michigan, please help us figure out what it is. Thank you!!
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Pls identify what rock is this !
https://ibb.co/jueXR5
https://ibb.co/n5AHtk
https://ibb.co/bBA0Dk
https://ibb.co/hO5p65
https://ibb.co/btZStk
https://ibb.co/mCdntk
#1 Gneiss
#2 Granitoid
#3 Need close up
#4 Gneiss
#5 Granitoid (Syenite?) with pegmatite (Peggie is more coarse grained)
#6 Same as 2.
What are the uses of gneiss & granitoid bro !
same uses as granite.
I found this rock in my farm at the top layer . Will this rock go deeper inside ? Will this rock be worth like granite to make a quarry ! Pls help me bro
I can't tell you that, "bro". The economics you can research on your own, now that you know what it is.
To tell if the rock continues with depth typically involves diamond drilling.
Hello! I'm actually a semi-visitor to this site, I recently bought a couple of rocks at a pet store with the intention of putting them in my fish tank, but first I wanted to confirm what they are! They were sold to me as "rainbow slate" which they do not seem to be...so if anybody could identify these rocks, I would be so grateful!
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I would guess this to be a silver sulfide mineral- Thick bluish black mineral covering quartz from a vein outcrop at a known past producer of gold and silver mine. Anyone know what this black/bluish black mineral in a gold/silver vein would be?
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Why are you assuming it to be silver-sulphide, besides the known occurrence in the general area?
One sulphide rarely travels alone. When you say blue-black I think covellite. But it doesn't quite look right.
Do the usual tests.
Pls identify what type of rock is this !
https://ibb.co/fZ2QG5
https://ibb.co/cdwkG5
https://ibb.co/dTVUb5
https://ibb.co/gxVHUQ
Thanks
I was assuming silver based on assay of the vein material in that picture with well over 200 ounces per ton Ag. (18 ppm Au). Will run a 41 element suite assay on it and see what I get. Thank you for the reply. We all appreciate you sharing your knowledge on this forum.
I believe this was found in Mariposa County California. I think its Serpentine, not sure though. Its soapy feeling and has little dark stones in it. View attachment 1496559 View attachment 1496560
This was also found in Mariposa County california . I posted on the "what is it" forum and some believe it may be petrified bone.
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This was also found in Mariposa County california . I posted on the "what is it" forum and some believe it may be petrified bone.
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