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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Apophyllite Group from
Horky vein, Horky, Kutná Hora District, Central Bohemian Region, Czech Republic


Locality type:Vein
Classification
Species:'Apophyllite Group' (not an IMA approved species)
Formula:AB4[Si8O20]X · 8H2O
Confirmation
Validity:Confirmed
Confirmation Methods:Dealer/Collection Label
Data
Mineral Data:Click here to view Apophyllite Group data
Locality Data:Click here to view Horky vein, Horky, Kutná Hora District, Central Bohemian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:714582
Long-form Identifier:1:3:714582:7
GUID (UUID V4):0
Nearest other occurrences of Apophyllite Group
2.8km (1.8 miles) ⓘMarkovice quarry, Žleby, Kutná Hora District, Central Bohemian Region, Czech Republic
15.9km (9.9 miles) ⓘMalešov deposit, Malešov, Kutná Hora District, Central Bohemian Region, Czech Republic
29.0km (18.0 miles) ⓘLibodřice quarry, Libodřice, Kolín District, Central Bohemian Region, Czech Republic
71.5km (44.4 miles) ⓘRožná deposit, Rožná, Žďár nad Sázavou District, Vysočina Region, Czech Republic
72.8km (45.3 miles) ⓘRožná pegmatite (Rozna; Roschna), Rožná, Žďár nad Sázavou District, Vysočina Region, Czech Republic
76.9km (47.8 miles) ⓘKošťálov Quarry, Košťálov, Semily District, Liberec Region, Czech Republic
80.5km (50.0 miles) ⓘVotrubec quarry, Radostná pod Kozákovem, Semily District, Liberec Region, Czech Republic
85.8km (53.3 miles) ⓘHolý hill, Meziříčko, Třebíč District, Vysočina Region, Czech Republic
References
Ray and Alvin Schortmann
 
and/or  
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