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Holmbushite & Montgomeryite

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FNW56662

Holmbushite & Montgomeryite

Description Tabs

Description
Locality: 
Asland Quarry, Montcada I Reixac, Vallès Occidental, Barcelona, Catalonia, Spain
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.3 × 3.8 × 1.2 cm
Description

Sprays of acicular holmbushite crystals on both sides of the piece, on green montgomeryite matrix .

Mineral Data
What's on the rock

Holmbushite

Variety Of: 

Carbonate-rich Fluorapatite

Formula: 
Ca5(PO4,CO3)3(F,O)
Strunz: 
8.BN.05
Hardness: 
5.0
Hardness: 
0.0

Montgomeryite

Formula: 
Ca4MgAl4(PO4)6(OH)4·12H2O
Strunz: 
8.DH.25
Hardness: 
4.0
Type Locality: 
Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA
Fine Minerals World