Natural History - Polished Malachite Display Block

A large piece of cut and polished malachite with lustrous sheen of pale and dark green, pale crystals between nodules. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley

A nodule of malachite with lustrous sheen of pale and dark green, section cut from top showing internal structure. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Ll

Each with one polished face to display the internal contrasting banding. 308 grams total, 22-43 mm (7/8 - 1 5/8 in.). From the People's Democratic Republic of Congo.Ex Mineral Imports, London, UK.Greg

A group of six cut and polished circular malachite coasters with pale and dark green banding. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); form

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 group of ten one-off polished malachite mineral specimens of good quality malachite. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.184. 119 grams total, 25-46mm (1/4 - 1 3/4"). From the

Each with at least one polished face to reveal the attractive banding; some pierced for threading. 244 grams total, 17-46 mm (5/8 - 1 3/4 in.). From Democratic Republic of the Congo.Ex Mineral Imports

. Comprising irregular sections with one polished face, including single and one treble stalactite sections. 393 grams total, 40-70 mm (1 1/2 - 2 3/4 in.). From Democratic Republic of the Congo. Ex Mi

Devonian Period, 417-354 million years BP. A rectangular stone block displaying orthoceras fossils, polished on all six faces. 8 kg, 30 x 7 x 14cm (11 3/4 x 2 3/4 x 5 1/2"). Property of a London gentl

Upper Devonian Period, 370 million years B.P.. The freestanding textured matrix containing four specimens. 1.77 kg, 18 cm high (7 1/8 in.). Ex Cambridgeshire, UK, collection. [No Reserve]

Miocene Period, circa 25 million years B.P.. Composed of several fossil sea urchins or sand dollars in a matrix. 4.6 kg, 34.5 cm (13 5/8 in.). From France.

A serpentine block with wheel-turned pharos model above. 426 grams, 15cm (6"). Property of a North West London gentleman; formerly with a central London gallery in 1990.

A cut and polished agate slice displaying crystals to the exposed inner surfaces; a naturally-occurring smiling face formed in the polished surface composed of two large circular eyes and a crescent-s

Devonian Period, circa 417-354 million years B.P. Cut and polished from a single fossiliferous block and each side set with a large Goniatite sp. specimen. 3.4 kg total, 15.3 cm high each (6 in.). Fro

Devonian Period, circa 417-354 million years B.P.. Each polished and cut from a single block containing multiple Orthoceras sp. and other fossil specimens. 1.95 kg total, 12.2 cm high (4 3/4 in.). Fro

A pair of fluorite spheres displaying white, green and purple crystal formation and with rainbow reflections; both in a white cardboard display box. From China; from the historic ‘Victorian Museum��

Palaeozoic Period, 350 million years BP. A polished display plate of Orthoceras regulare, showing the fossil structures. 1.7 kg, 24.5cm (9 3/4"). From an old Cambridge, UK, collection; from the Atlas

An exceedingly fine display specimen of labradorite, polished on one side, with blue, yellow, and green 'schiller' on the entire polished side and blue schiller on the unpolished back face. From Madag

A group of ten acrylic display domes, each filled with a quantity of polished specimens of a single mineral, comprising of sodalite, green agate, snowflake obsidian, leopardskin stone, tiger-eye, brec

A sawn block of red-brown sandstone, polished on two sides, with areas of precious opal diffracting light in primarily purples, blues and greens, in white card tray. See Bonewitz, Dr. Ronald Louis, Ro

Found 2022 A.D. The cut and polished slice held in a custom-made collector's display box. 51 grams total, 84 mm wide including case (3 3/8 in.). From the Sahara Desert, North Africa. Property of a Sus

Devonian Period, circa 417-354 million years B.P. The extinct nautiloid cephalopod polished to reveal the internal gas chambers and set on a textured freestanding matrix. 15.8 kg, 1.01 m (39 3/4 in.).

Jurassic Period, 201-145 million years BP. A group of cut and polished ammonite halves revealing the inner chambers, two in old white card trays with A.B. Cotterill Collection, Wollaton, Nottingham, U

A large polished boulder of labradorite from Madagascar, with rich colour play on most faces, principally blues and golds. 2.99 kg, 18cm (7") From Madagascar; from the historic ‘Victorian Museum’