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Epididymite & Chiavennite

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SHS534634

Epididymite & Chiavennite

Description Tabs

Description
Locality: 
Tuften, Tvedalen, Larvik, Vestfold og Telemark, Norway
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.5 cm
Description

Nice epididymite and chiavennite on matrix

Mineral Data
What's on the rock

Epididymite

Formula: 
Na2Be2Si6O15·H2O
Strunz: 
9.DG.55
Crystal System: 
Orthorhombic
Hardness: 
5.5
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Chiavennite

Formula: 
CaMnBe2Si5O13(OH)2·2H2O
Strunz: 
9.GF.25
Hardness: 
3.0
Type Locality: 
Tanno, Chiavenna, Valchiavenna, Sondrio Province, Lombardy, Italy