Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Bertrandite On Tourmaline Var Schorl

Views:
Watches:
CLB106877

Bertrandite On Tourmaline Var Schorl

Description Tabs

Description
Locality: 
Karibib District, Erongo Region, Namibia
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 6.3 × 6 cm
Largest Crystal: 
6.00cm
Description

A very rich specimen with hundreds of creamy bertrandite crystals on schorl. Very rare. The longest, double-terminated schorl crystal measures 6 cm.

Mineral Data
What's on the rock

Bertrandite

Formula: 
Be4(Si2O7)(OH)2
Strunz: 
9.BD.05
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 7.0
Type Locality: 
Petit-Port, Nantes, Loire-Atlantique, Pays de Loire, France

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Schorl

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

Seller Information

Payment options: offline, paypal_wpp, paypal_wps