Quartz and Calcite Mineral Specimen Group.

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 three mineral specimens comprising: blue calcite, pink quartz, and quartz on banded agate with accessory orange calcite. 1.37 kg total, 40-56 mm (1 1/2 - 2 1/4 in.). Mineral Imports, London

A mixed group of mineral specimens, each accompanied by an identification label detailing the location of the find: fluorite (2); smokey quartz and haematite; calcite; quartz over fluorite; baryte. 1.

A group of semi-transparent, blocky, yellow-green apatite encrusting quartz, with accessory calcite and a single prismatic quartz crystal, with handwritten note reading:'APATITE, Panasqueriva', Tipex

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

Group of five richly coloured pieces of rose quartz, from South Africa. Found South Africa; from the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregor

Lot of 10 pieces of assorted crystal and mineral specimens. Includes a pair of standing agate slices, three smaller agate sliced with stands, a large 8" x 7" x 1.75" agate slice with stand, a large 9"

Mineral specimens including calcite, analcite, quartz, apatite (Brazil, 14.5 g), wulfenite/pyromorphite (Chester Co., PA), tourmaline and more.

A mineral specimen of translucent calcite on quartz with a large layered dark mass to the centre, a small cluster of clear six-sided pyramid crystals underneath, old inked collection number '517' to b

Amethyst, quartz, calcite, and pyrite on faux bronze in the form of an eagle, mounted to a marble platform, manner of Amador Braojos. 18"h x 12"w x 10.5"d **Please Note: This item is NOT eligible for

A group of beautiful display specimens includes Amethyst, a purple variety of quartz (~9 x 3 x 3.5 inches, ~1.8 pounds); a beautiful pale-blue Celestite, a strontium sulfate (~3.75 x 3.25 x 2.75, ~601

About ten mineral specimens of mostly unknown localities including Large single-crystal rhomb of Calcite, calcium carbonate, (~8 x 6 x 3 inches, 9 pounds); A single-crystal wedge of Calcite (7 x 3.75

Quartz Mineral Specimen with Gold Flecks on Wooden Stand. Faceted gold flecks on quartz group. Natural wear and inclusions. Mineral measures 13-1/2" H x 8" W. Weighs approx. 27.4 lbs. Shipping: Third

A rare specimen consisting of numerous finely-crystallised anatase crystals encrusting a group of quartz crystals, from Norway, in old white card tray with handwritten label reading: 'Anatase on Quart

A mixed mineral group comprising: a rich dark blue crystalline mass of sodalite, a concave matrix surface invested with quartz, atacamite and malachite, a rashleighite specimen, and a lustrous white m

A mixed group of 50 polished mineral specimens of various types, including haematite, quartz, red jasper, unakite, angelite, and others. 1.19 kg total, 27-44 mm (1 - 1 3/4 in.). Mineral Imports, Londo

A mixed mineral group comprising: a limestone matrix with rare blue quartz inclusions, a domed basalt matrix richly covered in green olivine crystals, a powdery limestone matrix carpeted with celestit

. A mixed group comprising: a galena block from Spain; a celestina block from Sicily; a large scalenahedral calcite crystal from Rumania; a block of cubic octahedral pyrite from Peru. 948 grams total,

A mixed group of mineral samples comprising: purple fluorite, blue opal, native copper, specularite with quartz, pyrite with quartz and sphalerite, bournonite with quartz, vanadinite, opal in matrix,

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 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

Exterior and Interior Rutilated Quartz with Calcite Minas Geralis Brazil

An eclectic collection of mineral specimens in labelled collector's boxes comprising: fluorite, apache tear, petrified wood, specular hematite, red and orange calcite, quartz, ruby in zoisite, chiasto

Comprising: haematite, quartz, amethyst, aventurine, agate, dalmatian jasper and others. 793 grams total, 18-33 mm (3/4 - 1 1/4 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's