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Phacolite & Thomsonite

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NST644373

Phacolite & Thomsonite

Description Tabs

Description
Locality: 
Oberwiddersheim, Nidda, Wetteraukreis, Darmstadt, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.2 × 4 cm
Description

A basaltic vug with lustrous waterclear, twinned chabazites var. phacolite and sprays of white thomsonites.

Mineral Data
What's on the rock

Thomsonite

Synonym Of: 

Thomsonite-Ca

Formula: 
NaCa2[Al5Si5O20]·6H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 5.5

Thomsonite-Sr

Formula: 
Na(Sr,Ca)2[Al5Si5O20]·7H2O
Strunz: 
9.GA.10
Hardness: 
5.0 - 0.0