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Apophyllite Narsarsukite Korobitsynite & Titanite

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BCK673614

Apophyllite Narsarsukite Korobitsynite & Titanite

Marcelle Weber
Classic Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.4 × 4.1 × 3.1 cm
Description

You are bidding on a very interesting small miniature with several vugs hosting a strange assortment of species. Apophyllite is present as yellow, thin tabular crystals sometimes growing directly on pale white, somewhat altered tabular narsarsukite tablets with a lot of pink ancylite-Ce prisms. There are also colorless prisms of korobitsynite and small bright yellow groups of titanite. There was also cordylite-Ce in this assemblage but none present here, possibly with trimming some will show. Collected in 1982 by Marcelle Weber. 

Mineral Data
What's on the rock

Apophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Narsarsukite

Formula: 
Na4(Ti,Fe)2[Si8O20](O,OH,F)2
Strunz: 
9.DJ.05
Hardness: 
7.0
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Korobitsynite

Formula: 
Na2(Ti,Nb)2(Si4O12)(OH,O)2·3-4H2O
Strunz: 
9.CE.30a
Crystal System: 
Orthorhombic
Hardness: 
5.0
Type Locality: 
Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Titanite

Formula: 
CaTi(SiO4)O
Strunz: 
9.AG.15
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Titanite occurrence, Hauzenberg, Lower Bavaria, Bavaria, Germany

Seller Information

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