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Kupletskite

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LMB216312

Kupletskite

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Description
Locality: 
Big Rock Quarry, Granite Mountain, Little Rock, Pulaski County, Arkansas, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
0.8 × 1.1 × 0.6 cm
Largest Crystal: 
0.08cm
Description

From a somewhat less known locality.

FOV in the first pair of photos is 2.3 x 2.7 mm. The individual blades are <= 0.8 mm. The dark green blades are (probably) aegirine.

FOV in the second pair of photos is 2.5 x 3.8 mm. The kupletskite blades here are more “robust”, but a bit shorter (<= 0.6 mm)

Note: This specimen comes mounted in an old hand made micro box.

Single item shipping weight 1.9 oz. It may be advantageous for foreign customers to hold an "open box" so as to reduce postage costs by combining with items from a future auction. Let me know, and I will generate a new “item only” invoice. Postage will be invoiced when all items are actually shipped.

Outside the USA, the stated postage and packing rate applies up to a total weight of 8 oz (225 g).

Within the USA, there is a nominal increase of $0.20 for each additional ounce. Above 13 oz, I will use Priority Mail. Up to 16 oz, the “own box” Priority rate is $8.50 (including packing).

Please see my "Shipping Policy" for details

Mineral Data
What's on the rock

Kupletskite

Formula: 
(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Strunz: 
9.DC.05
Crystal System: 
Triclinic
Hardness: 
4.0
Streak: 
Brown
Type Locality: 
Kuivchorr Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...
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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