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Rutile

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MCH636169

Rutile

ex Dr. Harry von Eckermann Collection

Description Tabs

Description
Locality: 
Snarum, Modum, Buskerud, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 4 × 3.5 cm
Largest Crystal: 
1.00cm
Description

Two intersecting prismatic rutile crystals are set on an aggregate of dark green amphibole crystals. In normal daylight the rutile crystals show an intense metallic luster, in artifical light, however, they exhibit the typical rutile-brown colour.

The specimen is from the collection of the famous Swedish mineralogist Harry von Eckermann († 1969, the mineral Eckermannite is named after him) and is followed by an original label bonded in a cardboard box.

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

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