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Corundum Hematite Mullite Pseudobrookite & Sodalite

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PAV1027622

Corundum Hematite Mullite Pseudobrookite & Sodalite

Classic Locality

Description Tabs

Description
Locality: 
Emmelberg, Üdersdorf, Daun, Eifel, Rhineland-Palatinate, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2 × 3.5 × 2.7 cm
Description

Fantastic sample!!!

Several pseudohexagonal hematite crystals, some o them with white mullite, associated to yellowish corundum, white sodalite crystals and pseudobrookite.

 

Acquired: 
Boxed with Label
Mineral Data
What's on the rock

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
9.0
Streak: 
White

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

Mullite

Formula: 
Al4+2xSi2-2xO10-x
Strunz: 
9.AF.20
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 7.0
Type Locality: 
Seabank Villa, Isle of Mull, Strathclyde (Argyllshire), Scotland, UK

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

Sodalite

Formula: 
Na8(Al6Si6O24)Cl2
Strunz: 
9.FB.10
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Ilímaussaq complex, Narsaq, Kujalleq, Greenland