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Microcline & Analcime

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PDM1024563

Microcline & Analcime

Description Tabs

Description
Locality: 
Tvedalen, Larvik, Vestfold og Telemark, Norway
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 6.9 × 4.5 cm
Largest Crystal: 
3.00cm
Weight: 
190.00gr
Description

Tabular grey coloured crystals of microcline crystals on matrix, from Tvedalen, a locality that is infrequent in collections. Small whitish spheroidal crystals of analcime are present in different parts of the microcline surfaces.

Acquired in 1985 to Jan Sibtsen. Ex Ludo Van Goethem collection.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Microcline

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Arendal, Aust-Agder, Norway

Analcime

Formula: 
Na2(Al2Si4O12)·2H2O
Strunz: 
9.GB.05
Crystal System: 
Triclinic
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Cyclopean Islands, Acitrezza (Aci Trezza), Etna Volcanic Complex, Catania Province, Sicily, Italy

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