Amblygonite

  

Origin: Telirio mine, Linopolis, Minas Gerais, Brazil

Sample size: left 4 x 4 x 3 cm, crystal 1.3 cm, right 2.5 x 2 x 2 cm

 

 

 

  

Amblygonite on albite

Origin: Telirio mine, Linopolis, Minas Gerais, Brazil

Sample size: top 5 x 3 x 3 cm, crystal twinned, bottom 5 x 3 x 2 cm

 

Origin: Telirio mine, Linopolis, Minas Gerais, Brazil

Sample size: 1.5 x 1.5 cm x 8 mm

 

  

Ellipsoidal nodule with crude crystal faces - a product of resorption or metasomatism - with a thin coat of kaolinite. This sort of "crystal" is very typical for amblygonite, a primary phosphate in Black Hills pegmatites.

Origin: Tin Queen mine, near Oreville, Pennington Co., South Dakota, United States

Ex. Grenier collection

Sample size: 6 x 5 x 4 cm

 

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Origin: Chursdorf, Penig, Chemnitz, Saxony, Germany (type locality)

Sample size: 35 mm

Owner: Thomas Witzke

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Origin: Utö, Sweden

Sample size: 4 x 7 x 7 cm

 

Origin: Etta Mine, Keystone, South Dakota, USA

Sample size: 4 x 6 x 10 cm

 

Origin: Black Hills, South Dakota, USA

Sample size: 9 x 9.5 cm

 

Gray-white amblygonite-montebrasite

Origin: Tin Mountain Pegmatite, Black Hills, South Dakota, U.S.A. 

Sample size: 4 x 6 cm

 

Grey-white chunck of crystalline amblygonite-montebrasite, intergrown with biotite.

Origin: King's X Pegmatite, Florence Co., Wisconsin, U.S.A.

Sample size: 4.5 x 5 cm

 

Origin: Montebras Mine, Boussac, Limousin, France

Sample size: 9 x 13 cm

 

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Origin: Eurowie, New South Wales, Australia

Sample size: unknown

Sample owner: Steve Sorrell

 

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