jcervay Posted June 15, 2018 Share Posted June 15, 2018 All 3 have the same dual color. Quartz? I'm really a rookie, not sure 1 Quote Link to comment Share on other sites More sharing options...
azdigger Posted June 15, 2018 Share Posted June 15, 2018 Not sure of what it is , but what it is , is cool looking. 1 Quote Link to comment Share on other sites More sharing options...
Saul R W Posted June 15, 2018 Share Posted June 15, 2018 Check the hardness, for starters. See here: https://geology.com/minerals/mohs-hardness-scale.shtml And yep, it is a cool looking piece. 1 Quote Link to comment Share on other sites More sharing options...
Morlock Posted June 15, 2018 Share Posted June 15, 2018 Citrine is quartz that has small quantities of iron in it. You have a light yellow and brown layers. Those are citrine..You also have a gray layer which I'm not sure of. 1 Quote Link to comment Share on other sites More sharing options...
jcervay Posted June 15, 2018 Author Share Posted June 15, 2018 55 minutes ago, Saul R W said: Check the hardness, for starters. See here: https://geology.com/minerals/mohs-hardness-scale.shtml And yep, it is a cool looking piece. Great idea! I'll do that Quote Link to comment Share on other sites More sharing options...
jcervay Posted June 15, 2018 Author Share Posted June 15, 2018 Doesn't scratch glass, obviously scratched by quartz. Reacts to vinegar. Not citrine I don't think. Calcite? Thoughts? 1 Quote Link to comment Share on other sites More sharing options...
d_day Posted June 15, 2018 Share Posted June 15, 2018 (edited) I'm going to say calcite and aragonite. In fact, I'm going to get a little more specific and say you've probably got some fragments from a septarian nodule, like this one. Edited June 15, 2018 by d_day 1 Quote Link to comment Share on other sites More sharing options...
jcervay Posted June 15, 2018 Author Share Posted June 15, 2018 36 minutes ago, d_day said: I'm going to say calcite and aragonite. In fact, I'm going to get a little more specific and say you've probably got some fragments from a septarian nodule, like this one. I was just starting to think the Sam thing. Not the nodule bit, but it makes me extremely sad that if it was, it's broken 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.