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Microcline Hyalite & Schorl

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HAN712571

Microcline Hyalite & Schorl

Fluorescent

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Single Crystal
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 3.2 × 2.7 cm
Weight: 
72.00gr
Description

unusual piece in that this is an elongated feldspar, floater, sharply terminated on both ends with fluorescent last generation growth of Opal var Hyalite . Black parts are Schorl. Hyalite fluoresces bright green in UV and the feldspar dull red.

Mineral Data
What's on the rock

Microcline

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Arendal, Aust-Agder, Norway

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

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

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 shipping and the e-Rocks listing  fees.

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