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Roger Warin · Joined: 23 Jan 2013 Posts: 1179

Here's an old Mexican calcite. Who may indicate its more specific origin?
Thank you.
Roger.

Jean Sendero · Posted: Feb 15, 2013 09:36 Post subject: Re: Mexican calcite

Roger,
nice and interesting piece. To help figuring out where it is from, can you post photos from different angles and what is the darker black looking matrix.
Cheers
Jean

Roger Warin · Joined: 23 Jan 2013 Posts: 1179

Roger.

Hello John,
Thank you for helping me. I live in a country where there is fog and slush. Until a better light, here is a view in binoculars.
The dark gray background seems to be made with very small Barytes.
Roger.

Jordi Fabre · Posted: Feb 15, 2013 20:54 Post subject: Re: Mexican calcite

Seems to be from Mina San Bartolo, Charcas, San Luis Potosí, México.

Please see: https://www.topminerals.info/index.php?level=picture&id=47276 and https://www.mindat.org/gallery.php?loc=15334&min=859

Roger Warin · Joined: 23 Jan 2013 Posts: 1179

Thank you Jordi,
Minute crystals on matrix seem to be danburite.
Roger.

Anthony · Joined: 16 Jan 2013 Posts: 8 Location: California

Beautiful!

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