Natural History - 500 Carats of Polished Tourmaline

. A 500 carat group of tumble-polished tourmaline pieces, principally of green but also with some blue and red, from Brazil. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008 p.288-289. 108 grams

A very large group of polished tourmaline in various shades and sizes. 101 grams total, 5-14mm (1/4 - 1/2"). From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (G

. The colour ranging from light to dark green. 516 grams total, 5-13 mm (1/4 - 1/2 in.). Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [No Reserve]

A long necklace composed of tumble-polished tourmaline chip beads. 63 grams, 90cm (36"). Property of a Norfolk, UK, gentleman; acquired on the natural history art market. [No Reserve]

A group of 41 mixed facetted gemstones, comprising amethyst, citrine, tourmaline, sapphire, spinel, and others in a mix of natural and synthetic. From the historic ‘Victorian Museum’ or later coll

A group of fifty marquise cut green tourmaline gems. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co. (1932-1981) a

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]

Title: 141.55 Carat Beautiful Polished Black Tourmaline Drilled Beads Carat Weights: 141.55 Carat Size/Dimensions: xxx Origin: Pakistan Treatment: Natural Reserve: $30.00 Shipping: Domestic: Flat-rat

Stones and Gems: approx. 5.00 Carats TCW Natural Pink Tourmalines Total Item Weight: 12.7g Measurements: 7.25” long, 7.90mm wide Hallmarks, Stamps or Metal Test: 18k

Tourmaline slice , Both Side Polished Tourmaline Slice From Afghanistan Weight : - 9.85 Carats Size : 9*9*5 mm Treatment : Natural Origin : Afghanistan Economy Shipping Reserve: $60.00 Shipping: Domes

20th century AD. A group of six mottled grey and pink agate discoid coasters. 500 grams total, 88mm (3 1/2"). Property of a Hampshire collector; from Mexico. [6, No Reserve]

Materials: Tourmaline Slice Watermelon Tourmaline Polished Slice, Tourmaline Jewelry Slice , Natural Tourmaline Slice From Paproke Afghanistan, 9.10 carats, 13*13*5 mm Weight : 9.10 Carats Size : 13*1

No Reserve! Title: 5.00 ct Bi Color Natural Tourmaline Carving Color/Clarity: Semi -Transparent Gemstones: Loosegemstone Carat Weights: $5 Size/Dimensions: 20.60 x 8.70 x 3.10 Additional Information:

A handmade and high-polished 18k white gold ring, set with single natural emerald cut prong set tourmaline (approx. 1.87 carats total weight, color: medium green, clarity: VS2). Marked with maker's ma

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

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