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Lévyne-Ca

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SER926983

Lévyne-Ca

ex Americo Urbinati collection

Description Tabs

Description
Locality: 
Beech Creek Quarry, Mount Vernon, Grant County, Oregon, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.4 × 1.8 cm
Description

white hexagonal blades of levyne crystals

Mineral Data
What's on the rock

Lévyne-Ca

Formula: 
(Ca,Na2,K2)[Al2Si4O12]·6H2O
Strunz: 
9.GD.15
Crystal System: 
Trigonal
Hardness: 
4.0 - 4.5
Colour: 
White
Streak: 
White
Type Locality: 
Dalsnipa (Dalsnypen), Sandoy Island, Faroe Islands, Denmark