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EducationEmerald in Fuchsite?

11th Apr 2017 18:06 UTCKristi Hugs

Can Emerald and Fuchsite "grow" together? I have seen emeralds in a biotite matrix, but never a fuchsite one. Someone showed me a pic of Emerald in Fuchsite and I thought maybe because the color was so dark and emerald toned that they maybe meant to call it Emerald Fuchsite instead of Emerald IN fuchsite.

I am still learning who grows with what, so is this a combination possibility?

Thank you!!

11th Apr 2017 20:23 UTCErik Vercammen Expert

Fuchsite is variety of muscovite; biotite is magnesium-iron-mica, and I suppose that this is always black, even if it contains some chromium.

12th Apr 2017 02:03 UTCReiner Mielke Expert

The picture looks like a chloritic rock, fuchsite has a brighter and lighter green color. However I do not know if emeralds and fuchsite can grow together.

12th Apr 2017 12:12 UTCRalph S Bottrill 🌟 Manager

I would lean to a chloritic rock too, certainly no emerald visible.

12th Apr 2017 16:14 UTCMichael Hatskel

The specimen on the photo may also be a polished serpentinite rock.

As for the Emerald-Fuchsite association, it shall depend on the parent lithology: if aluminous, then Muscovite/Fuchsite, rather than Biotite, shall be possible.

A quick association search in Mindat returned a number of localities, including Habachtal, Austria. One of the pictures shows Emerald in green Mica, which is not identified in the descirption, but the color looks right for Fuchsite, although it can be Chlorite as well. Please see here: https://www.mindat.org/photo-353443.html.

12th Apr 2017 16:23 UTCKristi Hugs

Thank you all!! this is very helpful and I am grateful!

12th Apr 2017 16:50 UTCKristi Hugs

Here is a series of better pics :) http://imgur.com/a/bsMEC