Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Elpidite & Donnayite-(Y) & Gaidonnayite

Views:
Watches:
CFL774443

Elpidite & Donnayite-(Y) & Gaidonnayite

Type 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 × 5.2 × 5 cm
Description

Exceptional and uncommon specimen of extremely fluorescent acicular elpidite crystals with two types of terminations.  Some compacted crystals have flat top (similar to leifite crystals) and others have acicular sprays top.  Associated with two type locality species, donnayite-(Y) and gaidonnayite, and with polylithionite.  Collected by Gilles Haineault in 1998.

Mineral Data
What's on the rock

Elpidite

Formula: 
Na2ZrSi6O15·3H2O
Strunz: 
9.DG.65
Crystal System: 
Orthorhombic
Hardness: 
5.0

Donnayite-(Y)

Formula: 
NaCaSr3Y(CO3)6·3H2O
Strunz: 
5.CC.05
Hardness: 
3.0
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

Gaidonnayite

Formula: 
Na2Zr(Si3O9)·2H2O
Strunz: 
9.DM.15
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 0.0
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

Seller's terms and conditions

Collection Arkane accept payments by Paypal and direct email messages.