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Natrolite With Analcime & Calcite

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LGM146569

Natrolite With Analcime & Calcite

Ex Dr. Krantz, Bonn, Germany
With Antique Label

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Description Tabs

Description
Locality: 
Maze, Niigata City, Niigata Prefecture, Honshu Island, Japan
Size Range: 
Cabinet (10-18 cm)
Size: 
5.5 × 10 × 6.5 cm
Description

Radiating natrolite needles on a lawn of white analcime crystals, covering a vug in volcanic rock. A really nice historic specimen! Comes with a very old antique label of an unknown collection, probably T. Suita, Kyoto. Echigo Province was an old province in north-central Japan, on the shores of the Sea of Japan. Today the area is part of Niigata Prefecture, which also includes the island which was the old Sado Province.
Weight: 215 grams

Mineral Data
What's on the rock

Natrolite

Formula: 
Na2Al2Si3O10·2H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany

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

Calcite

Polymorph of: 
Aragonite and Vaterite
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Seller Information

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