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Dioptase on Duftite and Calcite: from the Tsumeb Mine, Otjikoto Region, Tsumeb, Namibia. A grass green matrix of duftite and calcite is host to a 12 mm tall dioptase crystal.

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mattsko.wordpress.com

Fluorite Locality: Rosiclare level, Denton Mine, Goose Creek Mine Group, Harris Creek Sub-District, Hardin County, Illinois,

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mineral-forum.com

Brookite on Quartz. From Kharan Mountain, Baluchistan, Pakistan. Superb specimen of many intersecting lustrous rectangular, transparent, red-orange bladed brookite crystals to 25mm, with a matrix fragment. The brookite crystals have vivid colour with dark sector zones that are rare and highly sought-after by collectors. - Overall size of mineral specimen: 30x25x8 mm. - Size of individual crystals: 1-25 mm. / Mineral Friends <3

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johnbetts-fineminerals.com

Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania | [db_pics/pics/tz216e.jpg]

Marin Mineral Company - African Minerals

marinmineral.com

Tanzanite from Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania | [db_pics/pics/af376c.jpg]

Marin Mineral Company - Tanzanite

marinmineral.com