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Låvenite & Augite

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ZLT200157

Låvenite & Augite

Description Tabs

Description
Locality: 
In den Dellen Quarries, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 2 × 2.3 cm
Description

Fraction of a sanindinite ejection block with a cavity showing yellow, prismatic lavanite crystals. Some augite is also present.

Mineral Data
What's on the rock

Låvenite

Formula: 
(Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2
Strunz: 
9.BE.17
Hardness: 
6.0
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

Augite

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

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