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Diaspore

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MCH615689

Diaspore

ex Dr. Harry von Eckermann Collection

Description Tabs

Description
Locality: 
Langesundsfjorden, Larvik, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 7 × 5.5 cm
Weight: 
282.00gr
Description

Some cavities, the largest measuring ca. 2 cm, are filled with purple crystals of diaspore and partly with white, acicular crystals of natrolite. The host rock is „Spreustein“, a chracteristic rock type in the pegmatites of the Langesundsford region consisting predominantly of natrolite. Specimen from a very old collection.

Mineral Data
What's on the rock

Diaspore

Formula: 
AlO(OH)
Strunz: 
4.FD.10
Hardness: 
6.5 - 7.0
Streak: 
white
Type Locality: 
Mramorskii Zavod (Mramorsk Zavod), Kosoi Brod Village, Ekaterinburg (Sverdlovsk), Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

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