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Pseudobrookite With Fluoro-magnesio-hastingsite

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QRI837955

Pseudobrookite With Fluoro-magnesio-hastingsite

Former collection Christian Mavris
Type Locality

Description Tabs

Description
Locality: 
Uroi Hill, Simeria, Hunedoara County, Romania
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.9 × 1.8 cm
Largest Crystal: 
0.10cm
Weight: 
6.00gr
Description

Shiny, elongated pseudobrookite crystals standing mostly vertically on this trachyandesitic matrix. Lustrous, well-formed and quite photogenic, the red elongated crystals are fluoro-magnesiohastingsite crystals (also TL!) that line the matrix almost entirely.

Uroi mountain is the TL of pseudobrookite. I did collect there in 2010, and I can tell that the mineral is quite rarely spotted in this quality. The specimen comes from my personal collection.

Mineral Data
What's on the rock

Pseudobrookite

Formula: 
Fe2TiO5
Strunz: 
4.CB.15
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
6.0
Streak: 
Brown
Type Locality: 
Uroi Hill (Arany Hill), Simeria, Hunedoara Co., Romania

Fluoro-magnesio-hastingsite

Formula: 
{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)F2
Strunz: 
9.DE.15
Hardness: 
0.0
Type Locality: 
Uroi Hill (Arany Hill), Simeria, Hunedoara Co., Romania

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