mineral general info

Pyrite

Origin: Wheal Wrey, St Ive, Cornwall, England, UK

Sample size: pyrite crystal groups to 8 mm, with minor chalcopyrite in quartz vein section

Owner: Steve Rust

Pyrite with quartz and galena

Origin: Smallcleugh Mine, Nenthead, Alston Moor District, North Pennines, Cumbria, England, UK

Sample size: area 8 cm x 7 cm

Owner: Steve Rust

Origin: Hampstead Farm Quarry, Chipping Sodbury district, Gloucestershire, England, UK

Sample size: 5 x 5 cm (top left), 0.6mm octahedral crystal with minor cubic faces (top right), 6 mm calcite crystal studded with pyrite, and minor pale purple fluorite crystals (bottom)

Owner: Christine Rust (top left), Steve Rust

Origin: Dale Mine, Ecton, Staffordshire, England, UK

Sample size: Cubic crystals with octahedral modifications to 1.5 mm on barite and calcite

Owner: Steve Rust

Origin: Castell Mine (Dyffryn Castell. New Castell. West Esgairlle. Gwaithddu. Cripiau Bach), Ponterwyd, Cwmrheidol, Ceredigion (Dyfed; Cardiganshire), Wales, UK

Sample size: 2mm "knee-joint" crystal

Owner: Steve Rust

Photo courtesy of:

Origin: Julcani Mine, Huancavelica, Peru

Sample size: 4.2 x 4.1 x 2.4 cm

Pyrite on scalenohedral calcite crystals

Origin: Rudniy, Kazakhstan

Sample size: 11.8 x 6.8 x 5.2 cm

Photo courtesy of:

Rob Lavinsky

The Arkenstone

Morphologically interesting specimen with a late stage tabular pyrite (3-5 mm) straddling twinned marcasite crystals (2 cm). The marcasite evidently was pyritized. Later stage pyrite is alo epitactic over the marcasite.

Origin: Nanisivik mine, Baffin Island, Nunavut Territory, Canada

Sample size: 11 x 9 x 4 cm

Photo courtesy of:

Tom Loomis

Dakota Matrix Minerals

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Physical, chemical and crystallographic description

Optical properties/Thin sections

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vibrational spectra description

IR spectra

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IES spectra