Actinolite

  

Actinolite with cream coloured microcline, skarn type deposit

Origin: Great Basin mine, Nye Co., Nevada,USA

Sample size: about 4 cm, to 1 cm actinolite sprays, microcline about 6 mm

 

  

 

  

Actinolite with minor phlogopite

Origin: Medicine Mountain, Custer Co., South Dakota, USA

Sample size: left 7 x 6 x 3 cm, right 6 x 4 x 2, 10 x 4 x 6 cm (2nd row), 10 x 5 x 5 cm (bottom)

 

  

Origin: Medicine Mountain, Custer Co., South Dakota, USA

Sample size: 10 x 9 x 3 cm

 

  

Actinolite with green epidote and red-brown grossular 

Origin: Great Basin mine, Nye Co., Nevada,USA

Sample size: about 4 cm

 

 

Variety uralite, actinolite pseudomorphous after pyroxene

Origin:Calumet mine, Chaffee Co., Colorado, U.S.A.

Sample size: 7 x 4 x 3 cm with blocky or prismatic crystals to 1.5 cm

 

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Origin: Mogok, Burma

Sample size: 5 x 1.3 x 0.2 cm (left), 3.5 x 0.4 x 0.1 cm (middle), 4 x 1.1 x 0.2 cm (right), 3 x 0.4 x 0.2 cm (bottom left), 2.7 x 0.3 x 0.1 cm (bottom right)

 

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Origin: Gunggletal, Austria

Sample size: 2-10 mm long green xls in matrix

 

  

Origin: Aplite quarry, Meldon, Okehampton, Devon, U.K.

Sample size: Finegrained aggregates of light green 1-2 mm large actinolite crystals in association with little quartz

 

Origin: Tiburon Peninsula, Marin Co., California, U.S.A.

Sample size: 3.5 x 5 cm

 

Origin: Sludorudnik, Ural, Russia

Sample size: 3 x 4 cm

 

Origin: Kåtatjärnbäcken at 660meters, Gieravardo-Joefjället area, Lapland, Sweden

Sample size: 7 x 9 cm

 

Green actinolite crystals up to 3 cm in talc matrix

Origin: Felbertal, Pinzgau, Austria

Sample size: 3.3 x 5 cm

 

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