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Brookite Albite & Quartz

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POL890486

Brookite Albite & Quartz

With Antique Label

Description Tabs

Description
Locality: 
Intschi Tobel, Intschi, Reuss Valley, Uri, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
14.7 × 5.5 × 3.8 cm
Description

Very nice and big specimen of hundreds of golden-brown Brookite crystals together with white Albite and clear Quartz (also with some "Faden" like formations) crystals on matrix from classic location. Very minor dings. Specimen needs to be clean but this is very nice example of this material. Comes with very nice historic label and original box!

Ex Mineralien-Niederlage d. Bergakademie Freiberg (Saxony, Germany)

Mineral Data
What's on the rock

Brookite

Formula: 
TiO2
Strunz: 
4.DD.10
Crystal System: 
Orthorhombic
Hardness: 
5.5 - 6.0
Type Locality: 
Twll Maen Grisial, Fron Olau, Prenteg, Gwynedd (Caernarvonshire), Wales, UK

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden

Quartz

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

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