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Haüyne & Pyroxene Group

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ZLT625995

Haüyne & Pyroxene Group

Description Tabs

Description
Locality: 
In den Dellen Quarries, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.5 × 3.5 × 2.5 cm
Largest Crystal: 
0.35cm
Description

Selected fraction of a sanidinite ejection block with a vug, showing a exellent group of short prismatic Haüyne twins and some black pyroxene.Largest crystal is 3.5 mm.
 

L.

Mineral Data
What's on the rock

Haüyne

Formula: 
(Na,Ca)4-8(Al6Si6O24)(SO4,S,Cl)1-2
Strunz: 
9.FB.10
Hardness: 
5.5 - 6.0
Type Locality: 
Lake Nemi, Alban Hills, Rome Province, Latium, Italy

Pyroxene Group

Group Members: 
Clinopyroxene Subgroup
Orthopyroxene Subgroup

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