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Adamite & Aurichalcite

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Adamite & Aurichalcite

Classic Locality

Description Tabs

Description
Locality: 
Sterling Mine, Ogdensburg, Sussex County, New Jersey, United States of America
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 5 × 0.8 cm
Weight: 
15.00gr
Description

Adamite is a rare mineral at the Sterling Mine. This specimen isn’t very pretty, but it has good coverage for the locality. Note: The label says “cuproadamite”, but according to Dunn’s Franklin and Sterling Hill monograph (p.653), it is adamite or “cuproan adamite”. The specimen is Ex “Jones” via the Franklin Mineral Museum and comes with that label.

The first pair of photos (FOV 6.6 x 4.5 mm) shows some of the larger (to 2.2 mm) spherules of adamite. These are all broken. According the Sterling Mine adamite comes in many colors, among them light and dark brown, green, yellow-green, bright pink and deep yellow. This stuff is mostly green. The pale blue stuff is aurichalcite (per the label – I’m no expert on Cu minerals).

The second pair of photos (FOV 6.8 x 4.4 mm) shows more of the aurichalcite on a crust of adamite.

The third pair of photos (FOV 6.4 x 3.9 mm) shows some unbroken spherules of adamite, but they are only ca 0.5 mm in diameter.
Single item shipping weight (no case) is 3.2 oz (94 g). For shipments outside the USA, up to a total weight < 8 oz (225g), this can be combined with items from this or other auctions for the same postage.

Within the USA, postage increases by about $0.20 per ounce. Above 13 oz, I will use Priority Mail ($9.25 including packing). 

Mineral Data
What's on the rock

Adamite

Formula: 
Zn2(AsO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Orthorhombic
Hardness: 
3.5
Streak: 
white
Type Locality: 
Chañarcillo, Copiapó Province, Atacama Region, Chile

Aurichalcite

Formula: 
(Zn,Cu)5(CO3)2(OH)6
Strunz: 
5.BA.15
Crystal System: 
Monoclinic - Prismatic
Hardness: 
1.0 - 2.0
Type Locality: 
Loktevskoye Mine (Loktevskii Mine), Upper Loktevka River, Rudnyi Altai, Altaiskii Krai, Western-Siberian Region, Russia

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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