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Burbankite

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LMB178906

Burbankite

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.5 × 3.5 × 4 cm
Largest Crystal: 
0.15cm
Description

The first photo shows a well terminated burbankite prism a bit < 1.5 mm long. The second photo shows two more burbankite prisms, one with a rough termination, the other with terminations either hidden or contacted. The visible part of the larger xl is about 1.4 mm.

There are several other burbankite xls, but they are very small and/or broken.

The specimen is from a miarolitic cavity with greenish-yellow calcite rhombs, analcime, natrolite, catapleiite and unidentified (possibly chlorite group) spherules. The catapleiite, and some of the analcime, are very dark, perhaps due to inclusions of this mineral.

Weight 1.6 oz (with case). Single item shipping weight 3.6 oz. Up to a total weight < 4 oz, this can be combined with one or two small items for the same postage.

Mineral Data
What's on the rock

Burbankite

Formula: 
(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Strunz: 
5.AC.30
Crystal System: 
Hexagonal
Hardness: 
3.5
Type Locality: 
Vermiculite prospect No. 6, Big Sandy Creek, Bearpaw Mts, Hill Co., Montana, USA
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.