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Cordierite

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LGM212607

Cordierite

Ex Dr. Krantz, Bonn, Germany
With Antique Label

Description Tabs

Description
Locality: 
Yekaterinburg, Sverdlovsk Oblast, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 4.5 × 2.5 cm
Description

An interesting historic sample: Blueish grains of cordierite in-grown in matrix.
Comes with very old label dated 19th century. The label means "Dichroit (Peliom, Cordierit) von indigblauer und grauer Farbe in 6-seitigen Säulen mit Glimmer eingewachsen von Katharinenburg in Sibirien" - "Dichroite, Peliom (old german synonyms), Cordierite with indigo-blue and gray color in hexagonal stacks with mica, in-grown in schist from Katharinenburg (todays Ekaterinburg) in Siberia".
Weight: 72 grams

Mineral Data
What's on the rock

Cordierite

Formula: 
(Mg,Fe)2Al3(AlSi5O18)
Strunz: 
9.CJ.10
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 7.5
Type Locality: 
Großer Arber, Bayerisch Eisenstein, Lower Bavaria, Bavaria, Germany

Seller Information

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Seller's terms and conditions

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