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Cookeite & Cassiterite

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LMB175556

Cookeite & Cassiterite

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Description Tabs

Description
Locality: 
Bennett Quarry, Buckfield, Oxford County, Maine, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
0.8 × 1.2 × 0.6 cm
Largest Crystal: 
0.17cm
Weight: 
1.00gr
Description

Apple green cookeite <= 1.7 mm in diameter with a single cassiterite “needle” < 0.9 mm long (bottom right). This is a micro. You will need 15-30X to see the cassiterite needle clearly (but it is visible at bottom right even in the macro photo). This quarry is well known for cookeite.

Single item shipping weight 1.8 oz. Note that USPS foreign packet rates recently increased significantly. 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

Cookeite

Formula: 
(Al2Li)Al2(AlSi3O10)(OH)8
Strunz: 
9.EC.55
Hardness: 
2.5 - 3.5
Streak: 
White
Type Locality: 
Mount Mica Quarry (Mount Mica Mine), Paris, Oxford Co., Maine, USA

Cassiterite

Formula: 
SnO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
6.0 - 7.0
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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