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Quartz With Riebeckite & Astrophyllite Inclusions

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IKM1029625

Quartz With Riebeckite & Astrophyllite Inclusions

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Description
Locality: 
Zagi Mountain, Federally Administered Tribal Areas, Pakistan
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3.2 × 1.7 cm
Description

An attractive well terminated with riebeckite inclusion, this quartz crystal also included by Astrophyllite, nice specimen.

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Riebeckite

Formula: 
◻[Na2][Fe2+3Fe3+2]Si8O22(
Strunz: 
9.DE.25
Hardness: 
5.0 - 5.5
Type Locality: 
Socotra Island, Adan Governorate, Yemen

Astrophyllite

Formula: 
(K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
Strunz: 
9.DC.05
Crystal System: 
Triclinic
Hardness: 
3.0
Streak: 
Golden
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

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Start 25 Mar 18:00
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