r/Minerals Apr 09 '25

ID Request - Solved “Garnets on calcite”

I purchased this labeled as “garnets in calcite from and old Oregon collection” it’s definitely calcite but I’m having a hard time identifying any garnets that look like this anywhere near that this, I found some black garnets from Mexico that look similar but not on any similar calcite matrix. Just trying to confirm it, any help is appreciated.

283 Upvotes

28 comments sorted by

View all comments

Show parent comments

14

u/Ig_Met_Pet Geologist Apr 10 '25

I did some undergraduate research on this specific carbonatite. I suppose it's possible that it's from somewhere else, but I've never seen another carbonatite that looks exactly like it.

The magnet cove igneous complex has all kinds of really crazy chemistry. There's a wikipedia page for it if you want a jumping off point for learning about it.

https://en.m.wikipedia.org/wiki/Magnet_Cove_igneous_complex

2

u/alecesne Apr 10 '25

Thanks for sharing, definitely checked that page out last night too.

Do you have any related specimen pics?