Help me identify this piece which is polished by me. It was broken from a geode like rock in the Himalayas ( Asia)
Looks like an agate which is a chalcedony of sorts.
Could also be travertine. Hardness and effervescence can both easily determine if it is one or the other.
It could be a salt.
But I think rock like quartz
Definitely not salt and more likely travertine over quartz due to patterns and luster. As mentioned though a definitive way to test would be with effervescence in acid or hardness...
He said he found inside a geode does that change your opinion any, Herschel?
A geode would indeed indicate a more typical quartz/agate combination, but although he mentions geode, the description is vague. Hunter - can you please provide more info on its "geode-like" habit, as well as some more pictures? Thanks.
The geode was broken open. Inside the geode i found sandstone like rocks. The above sample is that of the geode itself.
Thanks for your additional photos. Are your pieces cut and polished?
Now the easiest way to determine the true nature is by effervesence. Can you place some even (even a weak acid such as vinegar) and place it on a surface (i.e. best way to do this is with a liquid medicine dropper) and see if it forms small foaming bubbles?