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Catapleiite

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LMB164611

Catapleiite

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3 × 2.2 cm
Largest Crystal: 
0.70cm
Description

Lustrous tan xls (to ~ 7 mm on edge) on microcline with powdery dawsonite. There are several very nice undamaged xls. Also minor aegirine and natrolite. However, this is not a cabinet display piece because the xls do not stand out from the matrix because it is largely catapleiite as well.

Photo #1: This shows some of the best xls (to ~ 7 mm). This (macro) photo has the most accurate colors.

Photo #2: Catapleiite (a bit < 5 mm) with green aegirine and cream natrolite/gonnardite. This xl is in the area at left center in the macro photo. It is largely transparent, but iridescence obscures that in the photo.

Photo #3: Longest edge on catapleiite ~ 4.8 mm. The white stuff is dawsonite and there is also some green aegirine and a few dark polylithionite “diamonds”. These xls are in the same area as shown in photo #2.

Photo #4: FOV 6.8 x 4.4 mm. Catapleiite (~ 3.8 mm) with green aegirine and cream natrolite/gonnardite. This xl is on top of the larger xl in photos #1 & #3.

Photo #5: Edge of thr catapleiite xl is ~ 6.7 mm. This edge can also be seen (with more accurate color) at top right in the macro photo. Note the natural crack in the middle and aegirine inclusion at lower left. Nature has its own agenda.

Photo #6: Macro photo showing entire “front” of specimen. Unfortunately, it also shows the lack of contrast between the catapleiite and the matrix. A good part of the “back” is covered by a “paquet” of small faces. You will need 10-20X to see them.

Weight 0.6 oz.

Mineral Data
What's on the rock

Catapleiite

Formula: 
Na2Zr(Si3O9)·2H2O
Strunz: 
9.CA.15
Crystal System: 
Hexagonal
Hardness: 
5.5 - 6.0
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway
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.