Calcite & Sphalerite from Elmwood Mine, Tennessee USA

0%

Fantastic old specimen of Calcite & Sphalerite. This specimen is believed to be mined by Ryan Smith in the 1960s at the Elmwood Mine, Carthage Tennessee, USA. As the mine is now closed, this combination and quality is becoming harder to obtain these days, so I am glad it is now in the collection.

I acquired this specimen from Tony at Mineral Store at the August 2016 Sydney Crystal Show.

Specimen Details

Chemical Formula: CaCO3 – (Zn,Fe)S

ID #: JG0013

Colour: Clear to yellow calcite with small inclusions of black, dark brown sphalerite

Hardness: 3 – 4

Acquisition Date: 06/08/2016

Crystal System: Calcite – Hexagonal, Sphalerite – Isometric

Lustre: Vitreous, Metallic, sub-metallic, adamantine, resinous

Dimensions: 80mm x 68mm x 78mm

Weight: 267g

Location: Elmwood Mine, Carthage, Tennessee USA

Rarity of Mineral

Common

Did you know!?
If Sphalerite contains a large amount of iron impurities, it will have a metallic dark gray or black colour, which is common of most sulfide minerals.

Related Posts