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Tarbuttite Fluorapatite & Hemimorphite

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RSL612431

Tarbuttite Fluorapatite & Hemimorphite

Analysed

Description Tabs

Description
Locality: 
Skorpion Mine, Rosh Pinah, Oranjemund, Karas Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.5 × 2.2 cm
Description

These specimens show a matrix formed by divergent tabular lanceolated tarbuttite crystals, with an excellent brilliance and greenish tones. They are partially covered by a very aesthetic, brilliant and really transparent prismatic crystals of hemimorphite (see EDS analysis).
We have also determined the presence of a thin layer of fluorapatite, with some content of Zn and sometimes Cd. In all our analysis the relation Ca:(Zn+Cd) is maximum on 3:0.5, but for skorpionite must be 3:2. No skorpionite determined in several samples analized. With calcite and quartz crystals. We will send more analitycal results to the buyer. A specimen to be enjoyed under loupe...    

Mineral Data
What's on the rock

Tarbuttite

Formula: 
Zn2(PO4)(OH)
Strunz: 
8.BB.35
Crystal System: 
Triclinic
Hardness: 
3.5
Streak: 
White
Type Locality: 
Kabwe Mine (Broken Hill Mine), Kabwe (Broken Hill), Kabwe District, Central Province, Zambia

Fluorapatite

Formula: 
Ca2Ca3(PO4)3F
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany

Hemimorphite

Formula: 
Zn4Si2O7(OH)2·H2O
Strunz: 
9.BD.10
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Băiţa Mining District (Baita Bihor; Rézbánya), Nucet, Bihor Co., Romania
Analysis
Analysis Report - only: Tarbuttite Fluorapatite & Hemimorphite
Analysis Report - only: Tarbuttite Fluorapatite & Hemimorphite
Analysis Report - only: Tarbuttite Fluorapatite & Hemimorphite
Analysis Report - only: Tarbuttite Fluorapatite & Hemimorphite
Analysis Report - only: Tarbuttite Fluorapatite & Hemimorphite