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Siderite Albite Catapleiite Thorbastnäsite & Franconite

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CFL1162987

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 4.6 × 4.4 cm
Description

Very nice specimen of siderite crystals associated with albite, catapleiite, thorbastnasite, and fluorescent franconite.  Collected in 1999.

Mineral Data
What's on the rock

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden

Catapleiite

Formula: 
Na2Zr(Si3O9)·2H2O
Strunz: 
9.CA.15
Crystal System: 
Hexagonal
Hardness: 
5.5 - 6.0
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

Thorbastnäsite

Formula: 
Th(Ca,Ce)(CO3)2F2·3H2O
Strunz: 
5.BD.20a
Hardness: 
4.0 - 4.5
Colour: 
Brown
Type Locality: 
Pichikhol' alkaline Massif, Balygtyg-Khem River, Sangilen Upland, Tuva Republic, Eastern-Siberian Region, Russia...

Franconite

Formula: 
Na2Nb4O11·9H2O
Strunz: 
4.FM.15
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Francon quarry, Montréal, Québec, Canada

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Rest of World
$17

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