Fire Opal in Matrix Mineral Specimen Collection

. A group of over 20 matrices containing fire opal. 690 grams total, 36-54 mm (1 3/8 - 2 1/8 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [27, No Reserve]

A group of 26 pieces of fire opal in matrix. 617 grams total, 33-53 mm (1 1/4 - 2 1/8 in.). From Mexico. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [26, No Reserve]

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,

Thank you for attending HATMAN AUCTIONS! This auctions consists of part of an estate collection of rocks from around the world. This is a rare opportunity to bid on Rough rocks, slabs, cabochons, jewe

to include: blue kyanite, amethyst flower, deep green tourmaline in a quartz matrix, possibly blue-green dogtooth calcite, semi-translucent scolecite spray specimen, possibly blue barite spray on limo

Dimension: 70.7x60.6mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australi

A fine specimen of a hexagonal calcite crystal on a pyrite and galena matrix, in white card tray. 39 grams, 37mm (1 1/2"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory,

A specimen of wulfenite on matrix, in a collector's card tray. 30 grams, 37mm (1 1/2"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd (1981-2014); forme

A matrix specimen of crystalline azurite with dark blue colour with minor malachite, in white card tray; from Arizona, USA. 94 grams, 73mm (3"). From a historic ‘Victorian Museum’ collection; from

A large fine slab of deep orange citrine crystals on a matrix. 1.13 kg, 15cm (6"). From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Grego

A fine large slab of purple amethyst crystals on a matrix. 2.56 kg, 21cm (8 1/4"). From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Grego

A fine specimen of azurite on matrix, with malachite rosettes front and back of the specimen, from Arizona, USA. Found Arizona, USA; from the historic ‘Victorian Museum’ collection of Gregory, Bot

Dimension: 12x7.5cm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian

Gold on Matrix Nevada Charlie Hall Collection

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 large pyrite 'fool's gold' cube with some smaller cubes on a matrix. 244 grams, 10cm (4"). From an old Lincolnshire collection 1980s; from Spain. [No Reserve]

A specimen of the copper silicate chrysocolla, on matrix. From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co. (1932-1

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

Three various mineral specimens, including: smoky quartz with garnet; quartz with unknown green mineral; together with purple fluorite on white matrix; Provenance: Collection of Jack and Sheilla Clark

. A mineral specimen containing native gold, silver, and chalcopyrite appearing as metallic particles in matrix, from the Champion Lode, Colorado, USA, with Dr M. G. 'Sam' Weller, MBE, collection labe

. 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

. A mixed group of mineral specimens and a fossil comprising: twenty seven of chalcopyrite, four azurite on matrix, one citrine, one Flexicalimene trilobite. Private collection, Cambridgeshire, UK; ac

An estate collection of three (3) natural crystal mineral geode specimens. Striking natural designs featuring rough hewn rock matrix exteriors, concentric oblong and rectangular banded patterns, and c

A spectacular specimen of azurite on matrix with a spherical azurite aggregates to the surface, from Arizona, USA. 138 grams, 74mm (3"). From a historic ‘Victorian Museum’ collection; from the sto