Natural History - Historic Mixed Tsumeb Mineral Collection

. Comprising: anhydrate drilled core from Bahrain; an iridescent blue bornite; a rectangular cut wulfenite specimen; drilled calcite core; a polished red jasper slab found near Dunnotar Castle beach,

Comprising muscovite, realgar, orpiment, rubellite, tourmaline, bornite, sulphur, kyanite, ulexite and chrysocolla; each in a labelled box. 142 grams total, 21-24 mm (3/4 - 1 in.). Ex Mineral Imports,

Comprising: popcorn quartz, amethyst, agate, smoky quartz, brown obsidian, citrine, pyrite, 'desert rose', and others. 823 grams total, 23-81 mm (7/8 - 3 1/8 in.). Ex Mineral Imports, London, UK.Grego

. 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

Cut section with metallic lustre. 182 grams, 59 mm (2 1/4 in.). Collected in person from various parts of the world mainly between 1957-1966. From the private mineral collection of Stephen Atkinson, H

A mixed group of polished mineral 'eggs' including onyx, amethyst(?), serpentine(?"). 484 grams total, 48-64mm (2 - 2 1/2"). Ex Thompson collection, Devon, UK. [4, No Reserve]

An unusual quartz formation with finely formed crystals intergrown with another mineral, probably albite. From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gre

A fine, transparent, gemmy crystal of dioptase with smaller side crystals, in plastic display box. From Namibia; From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Llo

A fine, polished slice of rhodonite with a classic mix of red and black. From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottle

A finely coloured group of citrine crystals from Brazil in a perspex sphere, with perspex stand. From the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd (Gregory's); formerly G

A polished piece of beautifully figured malachite, with numerous 'eyes' exposed on the polished surface. From the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd (Gregory's); fo

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

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'

A piece of native gold mounted in a perspex display box. From USA; from the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co.

A piece of sawn malachite with lustrous green, blue and black clolouring. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottle

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 four aquamarine crystals, all terminated, from Brazil, in old white card tray. From Brazil; from the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd (Gregory's); form

A group of twenty yellow chunks of sulphur displaying clusters of small crystals. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory

A well formed dolomite saddle-shaped crystal crust mass. From Mexico; from the historic ‘Victorian Museum’ and later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley &

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

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

A rectangle of shiny pyrite in a white card box, with label reading: 'PYRITE, Huanuco, Peru'. 98 grams, 33mm (1 1/4"). From the historic ‘Victorian Museum’ and later collection of Gregory, Bottley

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 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