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Datolite & Apophyllite

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CLB174513

Datolite & Apophyllite

ex collection Akkerman (1991)
Classic Locality

Description Tabs

Description
Locality: 
Schmerzenreich Mine, Niederscheld, Dillenburg, Lahn-Dill, Giessen Region, Hesse, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 4.1 × 3.6 cm
Description

Pale greenish yellow, etched datolite crystals with colorless apophyllite crystals on matrix. Rare locality specimen.
Locality maybe Oberscheld.

Mineral Data
What's on the rock

Datolite

Formula: 
Ca(HBSiO5)
Strunz: 
9.AJ.20
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Nødebro Mine (Nøddebro), Arendal Iron Mines, Arendal, Aust-Agder, Norway

Apophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

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