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Arisite-(Ce) Natrolite Microcline & Aegirine

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MEX510304

Arisite-(Ce) Natrolite Microcline & Aegirine

ex Ralf Wartha, Windhoek stock

Description Tabs

Description
Locality: 
Aris Quarry, Windhoek Rural, Khomas Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2.4 × 1.6 cm
Description

Large transparent natrolite crystals overgrow the former vug wall. In the deepest vug area are few arisite ce crystals. Over the specimen are scattered additional microcline and aegirine crystals.

Mineral Data
What's on the rock

Arisite-(Ce)

Formula: 
NaCe2(CO3)3-xF2x+1
Strunz: 
5.BD.18
Hardness: 
0.0
Type Locality: 
Aris Quarries (Ariskop Quarry; Railway Quarry), Aris, Windhoek District, Khomas Region, Namibia

Natrolite

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

Microcline

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Arendal, Aust-Agder, Norway

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway