0
$\begingroup$

Found this smooth & polished stone years ago while digging about 3-5 feet down in the backyard in the lower portion of NY. The light area is semi-translucent and can appear white to a very light lavender with a brownish area that is striated. I think it is just so pretty and would love to know what it is. Any ideas? Thank you so much. stone stoneb

$\endgroup$

closed as off-topic by Universal_learner, arkaia, Fred, trond hansen, Jan Doggen Jul 12 at 9:36

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Please review our rock identification guidelines to provide the missing information so that your question is both answerable and useful to new users." – Universal_learner, arkaia, Fred, trond hansen, Jan Doggen
If this question can be reworded to fit the rules in the help center, please edit the question.

  • 1
    $\begingroup$ Looks like some sort of agate, silica, chalcedony, chert. Basically these are all names for the same thing. Search "agate", "chert" or "chalcedony" on this website for some information. $\endgroup$ – Gimelist Sep 6 '17 at 9:51
3
$\begingroup$

Yes. Just like what Michael said, it looks like a form of a polished silica mineral (quartz). Agate would be the most suitable name for that because of the banding and this is the most common form of chalcedony (cryptocrystalline quartz).

$\endgroup$

Not the answer you're looking for? Browse other questions tagged or ask your own question.