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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Allophane from
Borovec (Borowetz; Borowitz?), Štěpánov nad Svratkou, Žďár nad Sázavou District, Vysočina Region, Czech Republic


Locality type:Deposit
Classification
Species:Allophane
Formula:(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Allophane data
Locality Data:Click here to view Borovec (Borowetz; Borowitz?), Štěpánov nad Svratkou, Žďár nad Sázavou District, Vysočina Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:24455
Long-form Identifier:1:3:24455:2
GUID (UUID V4):0
Nearest other occurrences of Allophane
57.1km (35.5 miles) ⓘKřižanovice deposit, Křižanovice, Chrudim District, Pardubice Region, Czech Republic
82.7km (51.4 miles) ⓘDomašov nad Bystřicí quarry (Domstadtl quarry), Domašov nad Bystřicí (Domstadtl), Olomouc District, Olomouc Region, Czech Republic
91.6km (56.9 miles) ⓘBarbora mine (Barbora deposit), Petříkov, Ostružná, Jeseník District, Olomouc Region, Czech Republic
94.2km (58.5 miles) ⓘVidly deposit, Vidly, Vrbno pod Pradědem, Bruntál District, Moravian-Silesian Region, Czech Republic
97.6km (60.7 miles) ⓘSmrčník hill, Lipová-lázně, Jeseník District, Olomouc Region, Czech Republic
References
 
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