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Nordstrandite & Wollastonite & Gismondine & Augite

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SHS755832

Nordstrandite & Wollastonite & Gismondine & Augite

Description Tabs

Description
Locality: 
Bellerberg, Ettringen, Eifel Mountains, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 2 × 1 cm
Description

Nice nordstrandite with gismondine and augite on matrix

Mineral Data
What's on the rock

Nordstrandite

Formula: 
Al(OH)3
Strunz: 
4.FE.10
Hardness: 
3.0
Type Locality: 
Gunong Kapor, Bau, Kuching, Sarawak, Borneo Island, Malaysia

Wollastonite

Formula: 
CaSiO3
Strunz: 
9.DG.05
Hardness: 
4.5 - 5.0
Streak: 
White

Gismondine

Synonym Of: 

Gismondine-Ca

Formula: 
CaAl2Si2O8·4H2O
Strunz: 
9.GC.05
Hardness: 
0.0
Group Parent: 
Zeolite Group

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0