Marcasite

  

Origin: Racine, Racine Co., Wisconsin, U.S.A.

Owner: Lou Perloff

Microscopic image

 

Marcasite on pyrite

Origin: Chihuahua, Mexico

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

Marcasite covered with sugary quartz

Origin: Magmont mine, Iron Co., Missouri, U.S.A.

Sample size: 11.5 cm tall

 

Marcasite with calcite and dolomite

Origin: Milliken (Sweetwater) mine, Viburnum Trend, Reynolds Co., Missouri, U.S.A.

Sample size: 21 x 22 x 21 mm

 

  

Origin: Viburnum Trend, Missouri, U.S.A.

Sample size: 12 x 9 x 6.5 cm

 

Origin: Nikolaevskiy mine, Dal'negorsk, Primorskiy Kray, Russia

Sample size: 25 x 23 x 12 mm

 

Marcasite on arsenopyrite

Origin: Wolfram Camp, Queensland, Australia

Sample size: 33 x 22 x 20 mm

 

Photo courtesy of: 

Dealer in fine mineral specimens

 

  

  

Marcasite with calcite

Origin: Bellevue Quarry, Eaton Co., Michigan, U.S.A.

Sample size: 9.1 x 5.5 x 5.2 cm

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  

Marcasite on barite

Origin: Elmwood Mine, Smith Co., Tennessee, United States

Sample size: 8 x 7 x 4 cm

 

  

 

  

 

  

Reddish iridescent marcasite crystals to 1 cm in aggregate growing radial about a center core of probably pyrite. It's not certain whether this is actual marcasite or pyrite. It is stable under humid conditions. Tom had these for several years now.

Origin: near Belle Fourche, Butte Co., South Dakota, United States

Sample size: 4.5 x 5 x 4.5 cm (top), 4.5 x 4 x 4 cm (2nd row), 4 x 3 x 3 cm (bottom)

 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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