Ankerite

Ankerite with sphalerite

Origin: Gilman, Eagle Co., Colorado, U.S.A.

Owner: Milton Speckels

Microscopic image, about 4 cm

 

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Photo-Atlas of Minerals

Ankerite crystals to 6 mm

Origin: Nant Helen opencast coal mine, Onllwyn, Neath-Port Talbot (West Glamorgan; Glamorgan), Wales, UK

Owner: Steve Rust

 

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Ankerite pseudomorph after siderite

Origin: St. Marie-aux-Mines, Alsace, France

Sample size: 8.5 x 3.5 x 8 cm

 

  

Origin: Formazza Valley, Piedmont, Italy

Sample size: 3.5 x 2.5 x 2.8 cm

 

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Ankerite-talc schist with brown ankerite blasts in foliated talc matrix

Origin: Ranfjell, Bjellånes, Nord-Råna, Norway

Sample size: 4 x 9 cm

 

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Origin: Henty Mine, Tasmania, Australia

Sample size: unknown

Sample owner: Steve Sorrell

 

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