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Bettertonite

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Bettertonite

Type Locality

Description Tabs

Description
Locality: 
Penberthy Croft Mine, St Hilary, Cornwall, United Kingdom
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 1 cm
Description

Previously known as liskeardite, this material has now been redefined ad bettertonite, a new extremely rare mineral (IMA 2014-074, Al6(AsO4)3(OH)9·16H2O) only known from this locality worldwide. It occurs as white crystals and crystal aggregates on a contrasting matrix. For a discussion on the subject please see http://www.mindat.org/mesg-104-355275.html

Mineral Data
What's on the rock

Bettertonite

Formula: 
Al6(AsO4)3(OH)9·16H2O
Crystal System: 
Monoclinic
Type Locality: 
Penberthy Croft Mine, St Hilary, Cornwall, England, United Kingdom

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