Natural History - Large Pink Dolomite Crystal Display Section Group [5].

A large pink agate crystal slice, polished on both faces; colour-enhanced. 484 grams, 23.5 cm (9 1/4 in.). From Antigas, Uraguay.Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [No R

A group of eight agate geode sections. 3.5 kg total, 85-96 mm (3 3/8 - 3 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [8, No Reserve]

A fine group of classic, curved pink dolomite crystals on a matrix of rock dolomite, in white card tray. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.181. 384 grams, 95mm (3 3/4"). From t

A fine specimen of curved pink dolomite crystals on matrix. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.181. 288 grams, 14cm (5 1/2"). From the historic ‘Victorian Museum’ and later

A group of ten large sections of pink dolomite, some with marcasite and other inclusions. 1.1 kg total, 57-83mm (2 1/4 - 3 1/4"). From the historic ‘Victorian Museum’ or later collection of Gregor

Large group of petrified wood, rock and crystal specimens in shades of pink and brown. Sizes range from 1 1/2" to 9".

A group of twenty chunks of red calcite with waxy lustre. From the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's); formerly Gregory, Bottley & Co. (1932-19

A group of six cut and polished purple agate geode sections, with exposed crystals; colour-enhanced. 1.39 kg total, 69-94 mm (2 3/4 - 3 3/4 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (

. With enhanced pink-colour and also showing translucent to opaque quartz crystals. 539 grams, 23.2 cm (9 1/8 in.). Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [No Reserve]

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 fine specimen of pale pink dolomite crystals, in white card box with label reading: 'PINK DOLOMITE, Touissite, Morocco'. 23 grams, 41mm (1 1/2"). From the historic ‘Victorian Museum’ and later c

A cut and polished fluorite crystal obelisk with bands of green and purple colour. 240 grams, 13cm (5"). From a historic ‘Victorian Museum’ collection; from the stock of Gregory, Bottley & Lloyd (

A cut section of amethyst crystals of good colour on a custom-made display stand. 1.6 kg total, 12 cm high (21 cm high including stand) (4 3/4 in. (8 1/4 in.)). Ex Lincolnshire, UK, collection. [No Re

Cretaceous Period, circa 100 million years B.P.. Featuring two echinoid specimens in an irregular matrix. 2.8 kg, 17.5 cm (7 in.). From Morocco, North Africa. [No Reserve]

A group of five polished mineral 'eggs' in onyx, banded agate, serpentine(?"). 1.3 kg total, 69-80mm (2 3/4 - 3 1/4"). Ex Thompson collection, Devon, UK. [5, No Reserve]

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 very large selenite gypsum 'desert rose' composed of blades of selenite with gypsum sand inclusions. 3.1 kg, 22 cm wide (8 5/8 in.). From a Humberside, UK, collection. [No Reserve]

A group of three grossular garnet chunks. 1.5 kg total, 8.4-10.9 cm (3 1/4 - 4 1/4 in.). Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). [3, No Reserve]

Jurassic Period, circa 180-185 million years B.P.. Presenting an Amaltheus stokesi fossil ammonite in a matrix, together with other fossil inclusions. 1.2 kg, 17.5 cm (6 7/8 in.). From Hawsker, North

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 group of six polished agate geode slices; colour-enhanced. 396 grams total, 8.7-11.8 cm (3 3/8 - 4 5/8 in.). Mineral Imports, London, UK.Gregory, Bottley & Lloyd (Gregory's). [6, No Reserve]

Devonian Period, 417-354 million years BP. A large group of specimens of Gissocrinus goniodactylus Crinoid stem sections from Devonian Period of Morocco. 1.13 kg total, 10-65mm (1/4 - 2 3/4"). From an

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

A group of pyrite specimens with well-formed crystals ranging in size; some on a matrix. From Peru; from the historic ‘Victorian Museum’ or later collection of Gregory, Bottley & Lloyd (Gregory's)