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Haüyne Sanidine & Volcanic Glass

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RHT752123

Haüyne Sanidine & Volcanic Glass

ex collection Whitney, ex Eugen Kreidler
With Antique Label

Description Tabs

Description
Locality: 
In den Dellen Quarries, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.5 × 3.9 cm
Weight: 
143.00gr
Description

An antique label comes with this interesting specimen, full of blue haüyne grains, colorless sanidine and yellowish-greenish volcanic glass.
 

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

Sanidine

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic - Prismatic
Hardness: 
6.0
Streak: 
White
Type Locality: 
Drachenfels, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany