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Zeophyllite & Tetranatrolite

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CLB540365

Zeophyllite & Tetranatrolite

ex collection Schwans
Fluorescent

Description Tabs

Description
Locality: 
Schellkopf, Brenk, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.2 × 6.8 × 1.5 cm
Description

Good specimen with beige, botryoidal zeophyllite (or gonnardite?) aggregates and white tetranatrolite. Labelled as 'gonnardite', but I think zeophyllite is eventually more plausible (not analyzed). Of tetranatrolite I'm sure.

Strong fluorescence.

Mineral Data
What's on the rock

Zeophyllite

Formula: 
Ca13(Si10O28)F10·6H2O
Strunz: 
9.EE.70
Crystal System: 
Trigonal
Hardness: 
3.0
Colour: 
White
Type Locality: 
Velké Březno (Brezno nad Labem; Großpriesen), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic

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