Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Rock Crystal from
Althaus Mine, Sankt Martin am Silberberg, Hüttenberg, Sankt Veit an der Glan District, Carinthia, Austria


Locality type:Mine
Classification
Species:Quartz var: Rock Crystal
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Rock Crystal data
Locality Data:Click here to view Althaus Mine, Sankt Martin am Silberberg, Hüttenberg, Sankt Veit an der Glan District, Carinthia, Austria
Data Identifiers
Mindat Occurrence Record ID:219634
Long-form Identifier:1:3:219634:3
GUID (UUID V4):0
Nearest other occurrences of Rock Crystal
5.2km (3.3 miles) ⓘHickersdorferberg District, Zeltschach, Friesach, Sankt Veit an der Glan District, Carinthia, Austria
7.6km (4.7 miles) ⓘFe deposit, Dürnstein, Neumarkt in der Steiermark, Murau District, Styria, Austria
8.0km (5.0 miles) ⓘOpen pit, Waitschach, Guttaring, Sankt Veit an der Glan District, Carinthia, Austria
8.2km (5.1 miles) ⓘMarble quarry (Bürgergilt quarry; Bürgergilde quarry), Olsa, Friesach, Sankt Veit an der Glan District, Carinthia, Austria
8.9km (5.5 miles) ⓘWaitschach, Guttaring, Sankt Veit an der Glan District, Carinthia, Austria
13.1km (8.1 miles) ⓘSerpentinite quarry, Griesserhof (Gulitzen; Gullitzen), Hirt, Micheldorf, Sankt Veit an der Glan District, Carinthia, Austria
13.1km (8.2 miles) ⓘUnterfarcha, Straßburg, Sankt Veit an der Glan District, Carinthia, Austria
14.7km (9.1 miles) ⓘUnteraich (Moschitzberg), Wildbachgraben, Straßburg, Sankt Veit an der Glan District, Carinthia, Austria
15.1km (9.4 miles) ⓘMellach, Straßburg, Sankt Veit an der Glan District, Carinthia, Austria
16.7km (10.4 miles) ⓘB 317 Road tunnel (Ofentunnel), Scheifling, Murau District, Styria, Austria
References
Blass, G. and A. Pichler (2000): Althaus - ein alter Kupfer- und Eisenbergbau in Kärnten. Carinthia II, 190./110., 161-172. http://www.landesmuseum.at/pdf_frei_remote/CAR_190_110_0161-0172.pdf
 
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