Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Monteregianite-(Y) & Pectolite & Arfvedsonite

Views:
Watches:
SYM216714

Monteregianite-(Y) & Pectolite & Arfvedsonite

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 2 cm
Description

Many sharp crystals of greyish tabular monteregianite-y on matrix. 

Mineral Data
What's on the rock

Monteregianite-(Y)

Formula: 
(Na,K)6(Y,Ca)2Si16O38·10H2O
Strunz: 
9.EB.15
Hardness: 
3.5
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

Pectolite

Formula: 
NaCa2(HSi3O9)
Strunz: 
9.DG.05
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Sano, Mori, Mt. Baldo, Lagarina Valley, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy

Arfvedsonite

Formula: 
[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Strunz: 
9.DE.25
Hardness: 
5.0 - 6.0
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, Greenland