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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Cookeite from
Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil


08634980017366018628186.jpg
Cookeite, etc.

Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
01374820017271994614822.jpg
Cookeite

Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
08634980017366018628186.jpg
Cookeite, etc.

Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
08992740017271985612303.jpg
Cookeite

Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
08634980017366018628186.jpg
Cookeite, etc.

Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
08992740017271985612303.jpg
Cookeite

Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
Locality type:Claim
Classification
Species:Cookeite
Formula:(LiAl4◻)[AlSi3O10](OH)8
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Stokesite11
Lepidolite5
Microlite Group3
Albite3
Fluorapatite2
Spessartine1
Microcline1
Data
Mineral Data:Click here to view Cookeite data
Locality Data:Click here to view Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:22187
Long-form Identifier:1:3:22187:0
GUID (UUID V4):0
Nearest other occurrences of Cookeite
16.8km (10.4 miles) ⓘConselheiro Pena pegmatite district, Conselheiro Pena, Minas Gerais, Brazil
35.0km (21.8 miles) ⓘJaime Pacheco claim, Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil
73.4km (45.6 miles) ⓘFaria claim, Golconda mining district, Governador Valadares, Minas Gerais, Brazil
73.7km (45.8 miles) ⓘAlto da Golconda mine, Golconda mining district, Governador Valadares, Minas Gerais, Brazil
References
Atencio, Daniel, Carvalho, Flávio M.S., Matioli, Paulo A. (2004) Coutinhoite, a new thorium uranyl silicate hydrate, from Urucum mine, Galiléia, Minas Gerais, Brazil. American Mineralogist, 89 (5) 721-724 doi:10.2138/am-2004-5-606
 
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