• Hydrokenoralstonite (formerly Ralstonite) with Thomsenolite
  • Hydrokenoralstonite (formerly Ralstonite) with Thomsenolite
Fluorite and Halides

Hydrokenoralstonite (formerly Ralstonite) with Thomsenolite

$2,500.00   €2,220  £1,890.00 approx.  

This specimen is priced in US dollars, all other prices are approximate.

ID: CC28333
The famous Ivigtut Cryolite Deposit is on the western coast of southern Greenland, a location set in stunning scenery of water, mountains and snow.  This fine small cabinet specimen displays an excellent coverage of both Thomsenolite and Ralstonite crystals, but before progressing any further, I must point out that Ralstonite is now renamed Hydrokenoralstonite.  Ivigtut is type locality for both species.  The Hydrokenoralstonite forms colourless octahedral crystals and the Thomsenolite, elongated steep-sided square pyramidal crystals with flat pinacoids and generally stained rusty brown with iron hydroxides.  Specimens from this long worked-out mine are becoming increasingly difficult to find, and this is a super example.  The Ivigtut Cryolite Deposit is located at Ivittuut (Ivigtut) on Arsuk Fjord, Sermersooq, Greenland.

Details

Dimensions
6.8 × 5.9 × 4.8 cm
Categories
Fluorite and Halides
Locality
Ivigtut Cryolite Deposit, Ivittuut, Arsuk Fjord, Sermersooq, Greenland, Europe

Minerals on Specimen

Minerals on specimen
Hydrokenoralstonite , Ralstonite, Thomsenolite

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Thomsenolite
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 Ivigtut Cryolite Deposit, Ivigtut, Arsuk, Kitaa Province, Greenland, Europe
A large shallow vug in a pearly-white lustrous matrix with clear sprays of well-developed crystals...