Historic Mapimi Mexico Calcite on Conicalcite Mineral

A triangular specimen of calcite on conicalcite; supplied in a display case with old collector's identification label. 37.5 grams total, 53mm (box: 76 x 60 x 35mm) (2 (3 x 2 1/4 x 1 1/2)"). From the h

Rhombohedral Calcite from Mapimi, Mexico. Total weight 707 grams. Ruby Corundum in Andisite from Norway. Total weight of rubies 254 grams. Galena from Oklahoma. Weight 63 grams. Apatite crystals from

Chalcopyrite on Calcite Ojuela Mine Mapimi, Mexico Fluorescent

A fine specimen of a finely cut block of orange calcite, in white card tray with label reading: 'Calcite, Mexico'. 20 grams, 26mm (1"). From a historic ‘Victorian Museum’ collection; from the stoc

A fine specimen of white calcite crystals formation, in white card tray with label reading: 'WHITE CALCITE, Chihuahua, Mexico'. 14 grams, 29mm (1"). From the historic ‘Victorian Museum’ and later

A collection of fourteen mineral specimens in old cardboard trays with names and find locations, comprising: tourmaline from Sonora, Mexico; fluorite from Chihuahua, Mexico; pyrite from Mexico; smiths

A pair of chalcanthite specimens; supplied in a display case with old collector's identification label. 35.2 grams total, 44mm (box: 76 x 60 x 35mm) (1 3/4 (3 x 2 1/4 x 1 1/2)"). From the historic ‘

A rectangular pale-blue calcite crystal; supplied in a display case with old collector's identification label. 11.4 grams total, 19mm (box: 34 x 40 x 35mm) (3/4 (1 1/4 x 1 1/2 x 1 1/2)"). From the his

Fluorescent Mineral Calcite New Mexico 19g

A cluster of pyrrhotite crystals with accessory quartz crystals; supplied in a display case with old collector's identification label. 45.4 grams total, 50mm (box: 76 x 60 x 35mm) (2 (3 x 2 1/4 x 1 1/

Rare mineral specimen: red hemimorphite on calcite. Mexico 5oz

Adamite Mapimi, Mexico

A group of ten optical calcite specimens, each held in a white card collector's tray. 170 grams total, 18-22 mm (5/8 - 7/8 in.) Durango, Mexico. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (

A fine specimen of a deep purple amethyst crystals on a matrix, with smaller calcite crystals overgrown to the centre and one corner; in white card tray. 382 grams, 10.2cm (4"). From a historic ‘Vic

Gray Gypsum- Mexico, Calcite- Brazil, Calcite- Pea Ridge Mine, MO

A group of unusually formed, frosted calcite crystals on matrix. From India; From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bo

A large sheet of small, acicular calcite crystals on matrix. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.177. 725 grams, 22cm (8 3/4"). From the historic ‘Victorian Museum’

MATERIAL: Purple Fluorite CONDITION: Very good condition Size: 1 inch (25 mm) x 0,6 inch (16 mm) x 0,6 inch (17 mm) Origin: Ojuela Mine, Mapimi, Durango, Mexico. Fluorite is a positive, beautiful and

Calcite Mexico 5lb 11oz

Double Refractive Rainbow Filled Calcite Mexico 14oz

Banded Red x Green Calcite Mexico 5lb 3oz

A group of yellow-green adamite crystals on red sandstone, in white card tray, from the old Richard Barstow collection, from Mina Ojuela, Mapimi, Durango, Mexico. See Bonewitz, Dr. Ronald Louis, Rocks

Calcite Mexico 1lb 3oz

Zebra Calcite Mexico 4lb 13oz