Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Niobokupletskite & Franconite

Views:
Watches:
LMB178918

Niobokupletskite & Franconite

Share this by email

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.6 × 2.8 × 3.7 cm
Description

The first photo (FOV 5.2 x 3.9 mm), shows golden brown sprays of niobokupletskite with aegirine and albite. This find was analyzed (EDS) at ROM. There is a bit of fraconite, also analyzed, shown in the second photo (FOV 6.8 x 4.4 mm) - along with some more of the niobokupletskite. There are several other sprays of niobokupletskite on the specimen (all of the tan/brown areas in the macro photo).

Weight 1.5 oz (including case). Single item shipping weight 3.5 oz. Without the case, this could be combined with a few other items, up to a total weight < 4 oz, for the same postage.

Mineral Data
What's on the rock

Niobokupletskite

Formula: 
K2Na(Mn,Zn,Fe)7(Nb,Zr,Ti)2Si8O26(OH)4(O,F)
Strunz: 
9.DC.05
Crystal System: 
Triclinic
Hardness: 
3.0 - 4.0
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Franconite

Formula: 
Na2Nb4O11·9H2O
Strunz: 
4.FM.15
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Francon quarry, Montréal, Québec, Canada
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.

Item Toolbox