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Phosphosiderite Ferrisicklerite Triphylite

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PDM1034531

Phosphosiderite Ferrisicklerite Triphylite

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Description Tabs

Description
Locality: 
Buranga Pegmatite, Gatumba, Ngororero District, Western Province, Rwanda
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.8 × 7 × 2.1 cm
Weight: 
154.00gr
Description

Polycrystalline aggregate of blue phosphosiderite in a matrix with some cleaved crystals of black ferrisicklerite, and bottle green triphylite. This and similar specimens were analysed by XRD and SEM. The sample was collected in 1966 by Professor Albert Delvaux (1919-1998). Later in the stock of Jacques Deblandre.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Phosphosiderite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.05
Hardness: 
3.5 - 4.0
Type Locality: 
Kalterborn Mine, Eiserfeld, Siegerland, North Rhine-Westphalia, Germany

Ferrisicklerite

Formula: 
Li1-x(Fe3+xFe2+1-x)PO4
Strunz: 
8.AB.10
Hardness: 
4.0
Type Locality: 
Sidi Bou Othmane, El Kelaâ des Sraghna Province, Marrakech-Tensift-El Haouz Region, Morocco

Triphylite

Formula: 
LiFe2+PO4
Strunz: 
8.AB.10
Crystal System: 
Orthorhombic
Hardness: 
4.0
Type Locality: 
Hühnerkobel Mine (Hennenkobel Mine), Rabenstein, Zwiesel, Lower Bavaria, Bavaria, Germany

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