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mineraux meteorites skutterudite schorlite tourmaline noire erongo namibie mineraux meteorites skutterudite schorlite tourmaline noire erongo namibie

Schorlite - Tourmaline noire (Erongo, Namibie)

Chemical formula NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

Condition Excellent

Country of origin Namibia

Crystal System Trigonal

Dimension(s) 69 x 56 x 42 mm

Provenance Erongo

Transparency (Diapheny) Opaque

Weight 110 g

Minerals & Meteorites Minerals Skutterudite

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Grandgibus
Numismate bibliophile.

53 1343

Exceptionnelle macle à 120° de tourmaline noire de Namibie ... extrêmement rare.

 

Collection : Minéraux

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