Brown Quartz Crystal on Matrix Mineral Specimen

Herkimer Diamond Quartz Crystals Matrix Specimen & 1pc Loose New York

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 sheet of finely-formed prismatic quartz crystals on matrix, with small crystals of an unidentified accessory mineral, from Bulgaria. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.219. 42

Extra Small Purple Fluorites on Quartz Crystals Brown Dogtooth Calcites with White Calcite Plates Mexico 5oz

A fine specimen of white quartz crystals on a matrix of small pyritohedrons, in a white card tray with label reading: 'Quartz on pyrite, Huanuco, Peru'. 231 grams, 86mm (3 1/4"). From a historic ‘Vi

Pyrite bright metallic crystals from Mexico. Some in matrix with quartz crystals. Largest 4 1/2" 816 grams. Aurichalcite light blue crystals on rust colored matrix from Mexico. Largest 4 1/2" 255 gram

Haleyiosite included Quartz with Brown Haleyiosite psuedomorphs after Caclite New Find Colombia, South America 2lb 4oz

Amazing Silver Crystals on Quartz/Matrix Morocco 2.8oz

A fine specimen of quartz matrix with accessory brown muscovite, in white card tray with label reading: 'Muscovite in Quartz, Minas Gerias, Brazil'. 300 grams, 80mm (3 1/4"). From a historic ‘Victor

(8) LARGE CRYSTAL, ROCK, & MINERAL SPECIMENS INC. PERIDOT IN BASALT, BROWN, SMOKY, PURPLE, & CLEAR QUARTZ LARGEST CRYSTAL 6" TALL, BASE 9" WIDE

A mass of quartz crystals on a massive quartz matrix, with accessory pyrite, from Bulgaria. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.137, 219. 2.44 kg, 23cm (9"). Property of a Glouce

A fine specimen of quartz crystals with pyrite cubes on a matrix, in white card tray with label reading: 'QUARTZ with PYRITE, Alimon Mine, Huaron, Cerro de Pasco, Peru'. 49 grams, 40mm (1 1/2"). From

Larger size natural smoky quartz mineral specimen. Large crystal pint with a smaller twinned crystal. Deep dark brown black color fading into white quartz. Very nice decorative element. Gives off nice

Amethyst purple rock crystal quartz cluster mineral specimen on a blue lace banded agate matrix underside. 2.25" H x 7.5" W x 5.5" D.

. A group of twelve mineral specimens of muscovite (white mica) and quartz crystals on albite, with a specimen of the zeolites stilbite and heulandite on matrix. Private collection, Cambridgeshire, UK

Mineral specimans including red Realgar crystal (Peru), Napheline quartz crystal, green Pyromorphite and Carussite crystal, Vanadinite crystal clusters on Barite matrix (Morocco), Pyritein lapis lazul

Group (4) Mineral specimens, Including large, pink stilbite crystal on matrix from India; green flourite with sphalerite from China; vanadinite on matrix from Morocco; and clear quartz with large pyri

A fine specimen of mauve fluorite crystals over an orange-brown matrix surface. 530 grams, 10cm (4"). Ex Dr M. G. 'Sam' Weller, MBE, collection, Cornwall, UK; from Blackdene Mine, Weardale, UK, suppli

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 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

A matrix of white to translucent quartz crystals with lilac fluorite crystals; supplied in a cardboard specimen tray. 370 grams, 88 mm (3 1/2 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloy

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 quartz matrix with large black schorl tourmaline crystals on a layer of small clear to white quartz crystals; supplied in a cardboard specimen tray. 270 grams, 82 mm (3 1/4 in.). Mineral Imports, Lo

A large group of blue kyanite specimens, some within quartz matrix. 880 grams total, 2.6-10 cm (1 - 4 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [74, No Reserve]