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Lévyne-Ca & Phillipsite-Ca

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PAV914240

Lévyne-Ca & Phillipsite-Ca

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Description Tabs

Description
Locality: 
Serra de Água, Madeira, Madeira Islands, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.5 × 1.4 cm
Description

Very nice sample with perfect lévyne-Ca crystals associated to twinned phillipsite-Ca.

Collected: 
2021
Boxed with Label
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

Phillipsite-Ca

Formula: 
(Ca0.5,K,Na,Ba0.5)4-7[Al4-7Si12-9O32 . 12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
Lower Salt Lake Tuff, Puuloa Road, Oahu Island, Honolulu Co., Hawaii, USA