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Ferrokentbrooksite

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CHA120974

Ferrokentbrooksite

Description Tabs

Description
Locality: 
Água de Pau Volcano, São Miguel Island, Azores District, Portugal
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.9 × 1.9 cm
Description

ATTENTION: some very nice brown crystals on sienite ( one of the best samples finded )
ex Luigi Chiappino's Collection

Mineral Data
What's on the rock

Ferrokentbrooksite

Formula: 
Na15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3Cl2
Strunz: 
9.CO.10
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0
Streak: 
white
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Seller Information

Payment options: offline, paypal_wpp, paypal_wps