Dolomite

     

Pink dolomite crystals with clear quartz and calcite

Origin: St. Eustache, near Montreal, Quebec, Canada

Sample size: 10 x 8 x 3 cm

 

  

Origin: west of Gold Point, Esmeralda Co., Nevada, USA

Sample size: 9 x 4 x 4 cm, crystals to 7 mm

 

  

dolomite on quartz crystal

Origin: Hengyang, Hunan Province, China

Sample size: 4 x 3 x 2 cm, quartz crystal 4 cm, dolomite aggregate to 1.6 cm

 

  

Origin: Poudrette quarry, Mont St. Hilaire, Quebec, Canada

Sample size: 6 x 3 x 3 cm with green dolomite rhombs to 6 mm

 

  

Dolomite with minor marcasite

Origin: Black Rock, Lawrence Co., Arkansas, United States

Sample size: 6 x 8 x 1.5 cm

 

  

Dolomite to 6 mm with water clear quartz and minor pyrite to 4 mm

Origin: Homestake Mine, Lawrence Co., South Dakota, United States

Ex. Grenier Collection

Sample size: 9 x 3 x 4 cm

 

  

Origin: Reaye Quarries, Lough Gill, Co. Sligo, Eire, Ireland

Sample size: 6.5 x 3 x 3 cm
 

  

Saddle-shaped crystals to 1 cm with micro chalcopyrite crystals.

Origin: Joplin, Missouri, United States

Sample size: 5 x 4 x 2 cm

 

  

Cobaltoan dolomite

Origin: Mashaba West mine, Shaba, Congo

Ex. Polak collection

Sample size: 6 x 4 x 4 cm

 

Photo courtesy of: 

Origin: Eugui, Navarra Prov., Navarra, Spain

Owner: Lou Perloff

Microscopic image

 

 

Origin: Lengenbach quarry, Binntal, Valais, Switzerland

Owner: Lou Perloff

Microscopic image

 

Origin: Morro Velho mine, Nova Lima, Minas Gerais, Brazil

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

This single crystal of dolomite is a very sharp, twinned crystal with water bubble, ex. Carlos Barbosa Collection

Origin: Brumado, Bahia, Brazil

Sample size: 8 x 6 x 1.5 cm

 

  

Dolomite twin on quartz

Origin: St. Gotthard, Switzerland

Sample size: 9 x 7 x 6 cm

 

Photo courtesy of: 

  

Origin: Eugui quarries, Eugui, Navarra, Spain

Sample size: 12 x 16 x 8 cm

 

  

Dolomite after calcite on quartz

Origin: La Sirena mine, Guanajuato, Guanajuato, Mexico

Sample size: 9.5 x 7.5 x 2.8 cm

 

  

Dolomite covered with cerussite (left)

Dolomite on cuprite

Origin: Tsumeb, Namibia

Sample size: 3 x 2.5 x 2 cm (top left), 4 x 4 x 2 cm (top right), 4 x 4 x 2 cm (bottom)

Owner: John Schneider

Photo: John and Mark Schneider

 

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