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Kashinite & Hollingworthite

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SKY906996

Kashinite & Hollingworthite

Rare Mineral

Description Tabs

Description
Locality: 
Fox Gulch, Goodnews Bay, Bethel Borough, Alaska, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Micromount (under 1cm)
Size: 
0.1 × 0.1 × 0.1 cm
Description

Outstanding nugget of the extreme Ir (for kashinite) and Rh (for hollingworthite) rarities from Alaska, in a completely analyzed specimen by SEM/EDS , see both analysis enclosed.

Both species are clearly differentiated in the specimen: kashinite is the part of the nugget shown in photo 3 and hollingworthite is the crystal in photo 2 and also the rest of the nugget.

Don't miss the opportunity to get these two extreme rarities in a nugget very different from the typical polished sections that are rarely seen in the mineral market.

Note .- Oxygen in the analysis is due to some oxide mineral impurity present in the sample or even atmospheric oxygen.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

No duplicates available

Mineral Data
What's on the rock

Kashinite

Formula: 
(Ir,Rh)2S3
Strunz: 
2.DB.15
Hardness: 
7.5
Type Locality: 
Aleksandrov Log Pt deposit, Solov'eva Mtn, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

Hollingworthite

Formula: 
(Rh,Pt,Pd)AsS
Strunz: 
2.EB.25
Hardness: 
6.0 - 6.5
Colour: 
Grey
Type Locality: 
Driekop mine, Sekhukhuneland, Burgersfort, Bushveld Complex, Limpopo Province, South Africa

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