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Schorl Tourmaline Feldspar & Hyalite

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HAN790812

Schorl Tourmaline Feldspar & Hyalite

Fluorescent

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
4 × 8.2 × 3.5 cm
Weight: 
80.00gr
Description

Schorl Tourmaline crystals on whitish Feldspar with last generation growth of Hyalite. Feldspar fluorescence - light red UV SW and Hyalite  , bright green (UVSW and LW). Hyalite - Most Common Fluorescnt Activator: (UO2)2+ (Uranyl ion) as impurities

Mineral Data
What's on the rock

Schorl

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

Tourmaline

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

Feldspar

Group Parent: 
Feldspar Group

Hyalite

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Streak: 
white

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

After a sale we expect to receive the payment with Pay Pal within 48 hours. You can return the goods within 14 days of receiving them by registered priority mail with tracking number. Buyer pays the costs of the return shipping