Calcite with Sphalerite Mineral Specimen.

Pyrite, Galena, Pink Calcites Sphalerite Specimen Peru 1980's 4oz

A matrix specimen of bright galena and sphalerite crystals, with accessory quartz, with small calcite crystals to back, from Bulgaria. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.129, 13

Tri-State Minerals Calcite, Sphalerite, Marcasite

12oz Calcite with Quartz and Fluorite on Sphalerite. Great Fluorescent!

A cluster of fine, lustrous pyrite crystals form the classic Peruvian locality, crystallising principally as pyritohedrons, with accessory nailhead calcite and a sprinkling of small sphalerites, in ol

A sphalerite matrix with small clusters of yellow mimetite crystals and large white hexagonal calcite crystals; supplied in a cardboard specimen tray. 150 grams, 71 mm (2 3/4 in.). Mineral Imports, Lo

Rare amazing natural piece on custom stand 18"; 25 pounds 54 Kg

Huaron District - Cerro Pasco - Perú. Special piece, striated Pyrite cubes with black small Sphalerite crystals 85mm x 56mm

DescriptionMaterials: celestine, calciteBlue Celestine Crystals With Calcite Mineral Specimen From Baghdis, AfghanistanWeight: 85.25 CaratsSize : 38*26*17 mmOrigin : Baghdis, AfghanistanTreatment : Na

Materials: Terminated Celestine with Calcite 5 Grams Very Beautiful Terminated Celestine with Calcite mineral Specimen From Afghanistan Size 2 CM X 1.4 CM X 1.6 CM Reserve: $75.00 Shipping: Domestic:

Pyrite or fool's gold cluster on a calcite matrix mineral specimen, together with a lucite stand with four fitted brass arms. 4.5" H x 4" W x 3.5" D on stand.

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

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 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 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

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 group of four quartz crystal on matrix specimens, and one calcite on matrix, from the Rodopi Mountain region, Bulgaria. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008. 9.2 kg, 8-21cm (3 1/4

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’

A sheet of tabular and nailhead calcite crystals from the famous Bulgarian locality. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.227-231. 795 grams, 19cm (7 1/2"). Property of a Gloucest

Large Fluorite on sphalerite mineral specimen. Elmwood district of Tennessee. 12.5 kg. H 6-1/2" L 10-1/4" D 9". Provenance: Purchased from Brian Skinner, professor of geology, Yale University, 1996. L

Natural Phantoms Fluorite Crystal with Calcite Mineral Specimen From Pakistan - Weight : 522 Gram Size : 90*87 mm Treatment : Natural Origin : Baluchistan Pakistan DHL Express Shipping Reserve: $250.0

. A sphalerite mineral specimen from Northumberland in an old collector's card tray. 820 grams, 13.5cm (5 1/4"). Property of a Lincolnshire, UK, gentleman; acquired on the UK art market. [No Reserve]

Calcite with Marcasite Phantoms Linwood Quarry Buffalo, IA 2lb 8oz