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Calcioandyrobertsite

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AMM1084694

Calcioandyrobertsite

Ex. Dr. G. JUNG
Analysed

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.7 × 0.4 cm
Description

Fine specimen with blue calcioandyrobertsite crystals high in contast on matrix. Regarding to the label, the specimen is EDS-analysed.

Calcioandyrobertsite is a type locality mineral in Tsumeb Mine and is only known from four localities worldwide.

Important note: The specimens are from the renowned collection of Dr. Gerhard JUNG (Hagendorf specialist, after whom the mineral Jungite was named). Dr. Jung was very meticulous regarding the provenance of his pieces. The previous owner is often noted - it is noticeable that Dr. Jung apparently had good contacts with the famous Tsumeb collectors Walter Richard KAHN (Warikahnite) and Wolfgang BARTELKE (Bartelkeite) from the early 1970s to the late 1980s. Many of the pieces originally came from the hands of the aforementioned pioneers. The specimens of the JUNG collection with first-class and documented provenience are presented here.

Mineral Data
What's on the rock

Calcioandyrobertsite

Formula: 
KCaCu5(AsO4)4(H2AsO4)·2H2O
Strunz: 
8.DH.50
Crystal System: 
Monoclinic
Hardness: 
3.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Accepted payment methods: PayPal, bank transfer.

Money back guarantee is valid until 14 days after receiving the payment. The refund will be initiated immediately upon receiving the minerals back. Due to the return time, there may be a delay in the refund.