Annabergite, Anglesite, Actinolite Pseudomorph after Augite, Adamite & Chrome-Tremolite
Forest-green Chrome-Tremolite, Harcourt, Ontario, Canada, 32 x 14 x 9 mm. John Betts Collection © www.johnbetts-fineminerals.com
Gemmy green crystal of Chrome-Tremolite without matrix. It appears to be terminated on the top end. Excellent transparency for this mineral species. Collected in 1965. Ex. A. Stevenson collection #243.
Green Adamite from Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia. John Betts Collection © www.johnbetts-fineminerals.com
Beautiful specimen of translucent bright green Cuproadamite with two yellow Adamite crystals. Very lustrous and colorful.
Actinolite Pseudomorph after Augite, Calumet Iron Mine, Salida, Chaffee County, Colorado, 4 x 4 x 2 cm. John Betts Collection © www.johnbetts-fineminerals.com
Plate of green Actinolite pseudomorphs after Augite crystals up to 13 mm (commonly called Uralite). This is a very rich specimen with many sharp pseudomorphs.
Multicolored Anglesite. Touissit Mine, Oujda, Morocco, 5 x 4 x 1.5 cm. John Betts Collection © www.johnbetts-fineminerals.com
Large crystal of transparent Anglesite with color ranging from colorless to yellow at the edges.
Grass-Green Annabergite Crust. Lovelock Mine, Cottonwood Canyon, Humboldt County, Nevada; 11 x 6 x 5 cm. John Betts Collection © www.johnbetts-fineminerals.com
Rich specimen of grass-green Annabergite microcrystals with crusts of white Calcite. The Annabergite looks beautiful under magnification: lustrous, transparent, colorful. Ex. Jim Minette (1936-2002).