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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Quartz from
Chlum Hill, Sepekov, Písek District, South Bohemian Region, Czech Republic


Locality type:Hill
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Chlum Hill, Sepekov, Písek District, South Bohemian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:648011
Long-form Identifier:1:3:648011:0
GUID (UUID V4):0
Nearest other occurrences of Quartz
13.9km (8.7 miles) ⓘVrch Chlum, Velká, Milevsko, Písek District, South Bohemian Region, Czech Republic
15.4km (9.5 miles) ⓘVepice quarry, Vepice, Kovářov, Písek District, South Bohemian Region, Czech Republic
20.0km (12.5 miles) ⓘU údražského obrázku quarry, Údraž, Albrechtice nad Vltavou, Písek District, South Bohemian Region, Czech Republic
20.1km (12.5 miles) ⓘPředbořice deposit, Předbořice, Kovářov, Písek District, South Bohemian Region, Czech Republic
21.9km (13.6 miles) ⓘKamenné doly quarry, Písek, Písek District, South Bohemian Region, Czech Republic
22.0km (13.7 miles) ⓘStaré Hory deposit, Ratibořské Hory, Tábor District, South Bohemian Region, Czech Republic
22.1km (13.7 miles) ⓘU obrázku quarry (Obrázek I quarry), Písek District, South Bohemian Region, Czech Republic
22.3km (13.9 miles) ⓘPtáčkovna quarry, Písek, Písek District, South Bohemian Region, Czech Republic
24.5km (15.2 miles) ⓘDům Schwarzenberský Mine (Adam), Hlasivo, Tábor District, South Bohemian Region, Czech Republic
24.9km (15.4 miles) ⓘMilešov antimony-gold mine, Milešov, Milešov nad Vltavou, Příbram District, Central Bohemian Region, Czech Republic
References
Fiala, J., Losert, J.: Nález korundu, cordieritu, granátu, sillimanitu a turmlínu v hercynitovcích na Chlumu u Sepekova. Časopis pro mineralogii a geologii, 1976, roč. 21, č. 3, s. 326.
 
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