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Saponite Psilomelane & Natrolite

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RHT741879

Saponite Psilomelane & Natrolite

Classic Locality

Description Tabs

Description
Locality: 
Zeilberg Quarry, Maroldsweisach, Bavaria, Germany
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 4.6 × 2.3 cm
Weight: 
56.00gr
Description

Balls of colorless saponite crystals (visual ID - also possible: tobermorite) with dark gray botryoidal psilomelane and some acicular natrolite crystals.

Mineral Data
What's on the rock

Saponite

Formula: 
Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2·nH2O
Strunz: 
9.EC.45
Hardness: 
1.5 - 2.0
Type Locality: 
Lizard Point, Landewednack, Lizard Peninsula, Cornwall, England, UK

Natrolite

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