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PhotosNot cuprite from Germany
21st May 2026 19:18 UTCMartin Rich Expert OP
I think this is a crystal of tetrahedrite - tennantite in combination of dodecahedron and tetrahedra which is very typical for the mining area of Schwaz - Brixlegg in Austria. Also the appearence of the dolomit crystals fits very well with this area. I have specimens from there in my collection and the combination with malachite and azurite makes me pretty sure that this specimen comes from this mining area in Austria.
Other opinions from Austrian collectors?
BTW a very nice specimen!
25th May 2026 18:24 UTCUwe Kolitsch Manager
You could be right.
The specimen first reminded me also of Altenmittlau
but I have never heard of any fahlore crystal such large from Altenmittlau.
I will point a Schwaz-Brixlegg specialist to this thread.
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 26, 2026 01:36:49