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Rutile & Brookite In Quartz

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PDM1040344

Rutile & Brookite In Quartz

Description Tabs

Description
Locality: 
Cavradi Gorge, Curnera Valley, Tujetsch, Surselva Region, Grisons, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.4 × 1.2 cm
Description

Grey lustrous crystals of rutile imbedded in a translucent quartz crystal. A tabular brown crystal of brookite is also present, and it is partially covered by thin rutiles.

Ex Ludo Van Goethem specimen.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Rutile

Formula: 
TiO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal - Ditetragonal Dipyramidal
Hardness: 
6.0 - 6.5
Type Locality: 
Rutile locality, Horcajuelo de la Sierra, Madrid, Spain

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

Quartz

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

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