Natural History - Precious Ruby in Zoisite Polished

A sawn slice of zoisite containing a hundred or more opaque ruby crystals, polished on one side. From the historic ‘Victorian Museum’ collection of Gregory, Bottley & Lloyd (Gregory's); formerly G

Item/Description: Brutalist studio artisan pendant fashioned from pewter and set with a polished slice of natural ruby zoisite crystal quartz. Luminous stone with beautiful hues of purple pink and gre

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

A group of five polished plano-convex rubies. 3.68 grams total, 9 mm each (3/8 in.). Ex UK art market, 1970s.Property of a London gentleman. [5, No Reserve]

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

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’

Jurassic Period, circa 199-145 million years B.P. A composite plate containing a large number of variously sized ammonites, polished upper face. 835 grams, 24.7 cm (9 3/4 in.). From Madagascar. From a

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.

Jurassic Period, 199-145 million years B.P. Comprising a composite of various sized ammonites with polished upper surface. 778 grams, 23 cm wide (9 in.). From Madagascar. From a Lincolnshire, UK, coll

GORGEOUS RARE 100 % NATURAL RUBY ZOISITE PENDANT. MOUNTED IN .925 STERLING SILVER, INCLUDES 20 " 2mm. CHAIN. 150 CTTW

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 sawn and polished pair of natural agate geodes with several 'eyes' and cavities filled with amethyst crystals, with stands. From the historic ‘Victorian Museum’ collection of Gregory, Bottley &

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

A mixed group of 50 polished mineral 'pebbles'. 1.12 kg total, 31-45 mm (1 1/4 - 1 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [50, No Reserve]

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

Oligocene Period, circa 45 million years B.P. A polished specimen of amber displaying insect inclusions. 0.9 grams, 19 mm (3/4 in.). Property of a Sussex, UK, teacher. [No Reserve]

A group of six polished gemstone eggs including: marble, jasper, fossiliferous limestone, etc. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); for

Oligocene Period, circa 45 million years B.P. A polished specimen of amber displaying insect inclusions; Primorskoje mine, Kaliningrad. 6.83 grams, 27 mm (1 in.). From the Baltic Sea Coast, Primorskoj

A mixed group of 50 polished mineral specimens of various types, including haematite, quartz, red jasper, unakite, angelite, and others. 1.19 kg total, 27-44 mm (1 - 1 3/4 in.). Mineral Imports, Londo

A mixed group of 100 polished mineral 'pebbles'. 1 kg total, 20-34 mm (3/4 - 1 3/8 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [100, No Reserve]

A group of five cut and polished amethyst obelisks or massage tools ranging in colour from light to dark purple and with rainbow reflections. From Brazil; from the historic ‘Victorian Museum’ or l

. Mainly translucent with some small rainbow reflections. 83 grams, 37 mm (1 1/2 in.). From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [No Reserve]

Oligocene Period, circa 45 million years B.P. A specimen of polished amber with insect inclusion. 0.40 grams, 14 mm (1/2 in.). Property of a Sussex, UK, teacher. [No Reserve]

Oligocene Period, circa 45 million years B.P. A polished specimen of amber with insect inclusion. 3.26 grams, 41 mm (1 5/8 in.). English collection formed in the 1990s.UK art market.Ex property of an