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Brookite With Anatase & Quartz

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QRI769368

Brookite With Anatase & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Kharan, Baluchistan, Pakistan
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.4 × 8.1 × 4.2 cm
Largest Crystal: 
1.60cm
Weight: 
182.00gr
Description

Unlike most Baluchistan specimens, this one is possibly one of the very first that crossed the Italian borders in the early 2000s. The specimen was a flat out rusty ball with a few quartz points and a shiny black anatase face, buried among aquamarine and topaz specimens. The specimen as you see it is the result of numerous treatments, which evidenced over a dozen of anatase crystals and a 1.6 cm brookite blade, also quite lustrous.
The largest anatase is 0.6 cm long. Anatase crystals have either complete or truncated pyramids, and display black, mirror lustre and growth patterns. They are nicely perched on top of a creamy metamorphic matrix, which is what the first finds were carried out on.
On the back side, a carpet of water clear quartz crystals, sometimes with chlorite core. Occasionally, some small plagioclase is spotted, mostly under the anatase crystals.

Excellent for both display purposes and photography. In my collection for over 15 years, now available due to my shift in focus.

Acquired: 
Bologna Mineral Show (Italy) in 2003
No Labels
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

Anatase

Formula: 
TiO2
Strunz: 
4.DD.05
Hardness: 
5.5 - 6.0
Type Locality: 
St Christophe-en-Oisans, Bourg d'Oisans, Isère, Rhône-Alpes, France...

Quartz

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

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