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Beryl Var Greenkop & Schorl

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MNT637924

Beryl Var Greenkop & Schorl

Classic Locality

Description Tabs

Description
Locality: 
Erongo Mountains, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 3.2 × 3 cm
Description

This kind of beryl specimens from the Erongo came out for the first time quite a few years ago: the long prismatic crystals show a whiteish to slightly yellowish colour with distinctly zoned terminations of a greenish to blueish colour which led to the name "greenkop" beryls. This is a nice example with a black schorl matrix and more a blue than a greenkop.

Mineral Data
What's on the rock

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Crystal System: 
Hexagonal
Hardness: 
7.5 - 8.0
Streak: 
White

Greenkop

Variety Of: 

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Hardness: 
7.5 - 8.0

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0

Seller Information

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Seller's terms and conditions

Terms & Conditions Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed. In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me. Best regards Roger

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