British Pyrite Mineral Specimen

A fine specimen of bornite, minor arsenopyrite and pyrite, displaying a blue, green and purple iridescence to the surface. 560 grams, 10.5cm (4"). Ex Dr M. G. 'Sam' Weller, MBE, collection, Cornwall,

Originally listed at $1800 North America, ca. millions of years old. This is a massive chunk of pyrite! Pyrite is famous for its beautiful shine that closely resembles gold to the untrained prospecto

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 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

Pyrite Mineral Specimen with Geometric shapes

A fine specimen of a pyrite (Fool's gold) with a formation of larger cubic crystals to one side, in white card tray with a label reading: 'Pyrite, Huanuco, Peru'. 564 grams, 64mm (2 1/2"). From a hist

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

A fine pyrite (Fool's Gold) mineral specimen with lustrous surface, in white card tray with label reading: 'Pyrite, Huanaco, Peru'. 128 grams, 52mm (2"). From a historic ‘Victorian Museum’ collect

A group of fine lustrous pyrite crystals formed principally as striated pyritohedrons, in white card tray with label reading 'Pyrite, Huanuco, Peru'. 297 grams, 67mm (2 1/2"). From a historic ‘Victo

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 group of one hundred and thirty three irregular pyrite (Fool's Gold' mineral samples. 1.1 kg total, 16-29mm (3/4 - 1 1/4"). From a historic ‘Victorian Museum’ collection; from the stock of Grego

A fine specimen of pyrite in white card box with label reading: 'PYRITE, Huanuco, Peru'. 51 grams, 46mm (1 3/4"). From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Ll

Crystalline quartz with amethyst and pyrite mineral specimen, 9"L x 7.75"W x 2.75"H. Condition report: Good condition, no issues, please examine all photos closely. Contact C. Biddle Auction Gallery f

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.

Navajun, La Rioja, Spain. Wonderful cube cluster of pyrite in matrix, with shiny silver cubes. When mined, these pyrite cubes typically do not stay in place on the host rock unless buried deep within

A group of large pyrite (Fool's Gold) crystals circled around central area with smaller crystals, in white card tray. 314 grams, 64mm (2 1/2"). From a historic ‘Victorian Museum’ collection; from

A piece of medium blue, raw, untreated turquoise from Cornwall, UK. 455 grams, 76mm (3"). Ex Dr M. G. 'Sam' Weller, MBE, collection, Cornwall, UK; from Gunheath Pit, St Austell, Cornwall, UK, supplied

A pyrite (Fool's gold) concretion formed as a circular aggregate of crystals, in white card tray with label reading: 'Pyrite Sun, Sparta, Illinois, U.S.A.'. 414 grams, 74mm (3"). From a historic ‘Vi

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 cube of pyrite (Fool's Gold) with evenly formed faces and a metallic lustre. 80 grams, 28mm (1"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd

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 luxulyanite specimen displaying a combination of orthoclase, schorl and quartz. 740 grams, 11.5cm (4 1/2"). Ex Dr M. G. 'Sam' Weller, MBE, collection, Cornwall, UK; from Luulyan Valley, Cornwall, UK

A group of ten pyrite cubes with well formed, even faces, and a metallic lustre. From Huancuco, Peru; from the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory'

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