Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Error message

You are not currently authorised to view that page. Please make sure you are logged in and try again. If the problem continues please contact [email protected].

Rhodochrosite Polylithionite & Aegirine

Views:
Watches:
VCV154932

Rhodochrosite Polylithionite & Aegirine

Description Tabs

Description
Locality: 
Mont Saint-Hilaire, Montérégie, Québec, Canada
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.4 × 1.3 cm
Largest Crystal: 
1.30cm
Description

A sharp rhomb of rhodochrosite pierced by an aegerine crystal, is accompanied by a rosette of uncommon polylithionite crystals at the base. A classic Mont Saint Hilaire assemblage.

The chemical content of polylithionite is potassium lithium aluminum silicate fluoride and is named from the Greek for having much lithium. It is a not a very well known mica mineral.

Mineral Data
What's on the rock

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

Polylithionite

Formula: 
KLi2Al(Si4O10)(F,OH)2
Strunz: 
9.EC.20
Hardness: 
2.0 - 3.0
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, Greenland

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway
Vic's Vugh Minerals