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Pachnolite & Thomsenolite

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LMB633876

Pachnolite & Thomsenolite

Rare Minerals
Type Locality

Description Tabs

Description
Locality: 
Ivittuut, Arsuk Fjord, Sermersooq, Greenland
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.5 × 2.5 cm
Description

Beautiful pachnolite xls to 0.9 mm, with pseudo-cubic thomsenolite to 1.5 mm. Most of the crystals are stained by Fe oxides, but that is typical and it just makes them more attractive in this case.

The first two photos (FOV 2.4 x 3.0 mm) are a stereo pair. You will see the specimen rotate if you flip back and forth. These photos show some of the best pachnolite as well as a few small thomsenolite “cubes”. The third photo is a broader view (FOV 5.6 x 4.2 mm) of the same cavity. The fourth photo shows some of the largest thomsenolite “cubes”. The fifth photo is the “pachnolite side” of the specimen. The best cavity is at the bottom. The last photo shows the “thomsenolite side”, including the area with the largest crystals

Single item shipping weight (no case) is 3.5 oz (98 g). For shipments outside the USA, up to a total weight < 8 oz (225g), this can be combined with items from this or other auctions for the same postage.

Within the USA, postage for total weights up to 13 oz ranges from $4.25 to $6.50 (including packing etc) regardless of destination. Above 13 oz, I will use “own box” Priority Mail. The rate, including packing, varies by destination from $7.25 to $9.50.

See my updated “Shipping Policy” for details. 

Mineral Data
What's on the rock

Pachnolite

Formula: 
NaCa[AlF6]·H2O
Strunz: 
3.CB.40
Hardness: 
3.0
Streak: 
White
Type Locality: 
Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Fjord, Sermersooq, Greenland

Thomsenolite

Formula: 
NaCa[AlF6] · H2O
Strunz: 
3/C.02-20
Crystal System: 
Monoclinic
Hardness: 
2
Colour: 
Colourless, white, pale
Streak: 
White
Type Locality: 
Ivigtut Cryolite deposit, Ivittuut (Ivigtut), Arsuk Fjord, Sermersooq, Greenland
Dimorph Of: 

Pachnolite

Formula: 
NaCa[AlF6]·H2O
Strunz: 
3.CB.40
Hardness: 
3.0
LMB minerals

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

In addition to the standard terms and conditions, please note the following. Almost all IDs are visual. While in most cases the ID is obvious, there may be cases where it is not. If you are doubtful about a particular ID, please ask for more information. Or do not bid! Similarly, if you are not sure that the specimen meets your criteria, do not bid. I have tdone the best I can with the photos. Nevertheless, if you are not happy with a specimen for any reason, I will refund the bid price – but not the shipping costs (unless the fault is clearly mine) – if the specimen is returned. This policy applies even if analysis of the specimen shows that my ID was incorrect. When in doubt, ask - or don’t bid. Note that most crystals at MSH and Varennes are micros - even if on large specimens. Please pay attention to the stated sizes. Any customs duties, fees etc. are the responsibility of the buyer.