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Ussingite

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LMB208400

Ussingite

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Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 2 × 1.2 cm
Description

This is a micro. FOV in the first photo is 2.4 x 3.2 mm. World-wide, sharply formed crystals of ussingite are not common, but you will need 20-30X to view these. Under the scope, the crystals look nearly colorless. But – for some reason – they always come out more intensely violet/lilac in my photographs. There is also a bit of (broken) black lovozerite and a dark mica (probably annite). Ex Gilles Haineault and Jean-Pierre Beckerich.

Single item shipping weight 2.9 oz. Up to 4 oz, this can be combined with other items for the same postage. Outside the US, this can be shipped in a padded envelope for $7.

Mineral Data
What's on the rock

Ussingite

Formula: 
Na2AlSi3O8OH
Strunz: 
9.EH.20
Crystal System: 
Triclinic
Hardness: 
6.0 - 7.0
Streak: 
white
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, Greenland
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.

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