A collection of single and multiple crystals, mostly clear to white in colour. 1.28 kg total, 25-37 mm (1 - 1 1/2 in.). [50, No Reserve] From Br...

Comprising fifty specimens with green chromium-rich mica with white dolomitic marble. 1.15 kg total, 24-91 mm (1 - 3 5/8 in.). [50, No Reserve] ...

Devonian Period, circa 417-354 million years B.P. A pair of bookends formed from fossiliferous stone showing sections of goniatite and orthoceras ...

Fifty large specimens with iron deposits. 5.16 kg total, 40-72 mm (1 1/2 - 2 7/8 in.). [50, No Reserve] From Madagascar. Ex Mineral Imports, Lon...

Devonian Period, circa 400 million years B.P. Comprising two quadrilateral bookend carved from fossiliferous stone, each set with a large Goniatit...

Carboniferous Period, circa 3 million years B.P. A thick cone-like section showing two spiders and several flies, mounted on cardboard backing. 2...

Pleistocene Period, 2.6 million-11,700 years B.P. Restrung using recently polished Mammuthus primigenius bone beads. See Guide to the Elephants (R...

A small nodule split in two halves exposing the vibrantly dyed magenta-coloured crystals. 136 grams total, 61 mm each (2 3/8 in.). [2, No Reserv...

Cretaceous Period, 145-65 million years B.P. Comprising two Mosasaur prognathodon teeth; one repaired. 48 grams total, 46-53 mm (1 3/4 - 2 in.). ...

Large cut and polished sections, mined in Greece, cut and polished on both sides, probably recycled material mined in ancient Roman times. 375 g...

Middle Jurassic, circa 150 million years B.P. Comprising three Perisphinctes sp. ammonites, two with an old Gregory, Bottley & Lloyd label. 600 g...

Comprising fifty unpolished cut slices in various sizes in purple to white colour. 1.51 kg total, 37-80 mm (1 1/2 - 3 1/8 in.). [50, No Reserve]...

Eocene Period, circa 58-36 million years B.P. Comprising three rounded matrices with Knightia alta. 211 grams total, 78-84 mm (3 - 3 1/4 in.). [3...

Oligocene Period, circa 45 million years B.P. A polished specimen of dark-coloured amber displaying various inclusions. 227 grams, 17.5 cm (6 7/8...

One hundred irregular specimens displaying pearly lustre. 1.88 kg total, 29-60 mm (1 1/8 - 2 3/8 in.). [100, No Reserve] Ex Mineral Imports, Lon...

Devonian Period, circa 400 million years B.P. Both freestanding and showing internal details. 233 grams total, 71-75 mm (2 3/4 - 3 in.). [2, No R...

The pyramid with facetted lower edges, the massage wand with prismatic point and rounded base. 61 grams total, 2.9-11.2 cm (1 1/8 - 4 3/8 in.). ...

Jurassic Period, Toarcian Stage, circa 180 million years B.P. A rounded pebble half containing a Dactylioceras tenuicostatum sp. specimen. 678 gr...

20th century A.D. Restrung using graduated rough irregular pieces with knots in between; decorative metal collar on each side of the clasp. 63 gr...

Comprising ten parallelepiped specimens displaying typical birefringence. 1.27 kg total, 34-52 mm (1 3/8 - 2 in.). [10, No Reserve] Ex Mineral I...

Cretaceous Period, circa 125-113 million years B.P. Comprising two teeth with some root; repaired. 73 grams total, 66-71 mm (2 1/2 - 2 3/4 in.). ...

Cretaceous Period, circa 145-66 million years B.P. A pair of naturally iridescent Cleoniceras besairiei ammonites. 287 grams total, 66-90 mm (2 1...

Jurassic Period, circa 199-145 million years B.P. A thick cut and polished fossilised tree slice with quartz crystals filling the centre. 785 gra...

A small nodule split in two halves exposing the vibrantly dyed blue-coloured crystals. 147 grams total, 61 mm each (2 3/8 in.). [2, No Reserve] ...

Comprising thirteen parallelepiped specimens displaying birefringence, nine in specimen boxes. 249 grams total, 20-27 mm (3/4 - 1 in.). [13, No ...

Comprising one hundred irregular specimens. 990 grams total, 9-38 mm (3/8 - 1 1/2 in.). [100, No Reserve] From Mexico. Ex Mineral Imports, Londo...

Comprising ten rounded halves with a polished face showing internal banding, three dyed. 2.62 kg total, 75-92 mm (3 - 3 5/8 in.). [10, No Reserv...

Comprising twenty large irregular specimens. 4.92 kg total, 5.8-10.3 cm (2 1/4 - 4 in.). [20, No Reserve] Ex Mineral Imports, London, UK. Gregor...

Triassic Period, circa 235 million years B.P. Comprising one hundred cut sections of fossilised wood. 1.31 kg total, 19-31 mm (3/4 - 1 1/4 in.). ...

Eocene Period, circa 58-36 million years B.P. Rectangular matrix with a Knightia alta specimen. 210 grams, 80 mm (3 1/8 in.). [No Reserve] From W...

Jurassic Period, circa 200 million years B.P. Cut and with polished upper face showing internal structure, possibly Aegasteroceras sp. 440 grams,...

With an hourglass-shaped body, a small opening to the base of the top, enabling it to be used as a candlestick as well. 484 grams, 10.5 cm (4 1/...

Comprising: rhodochrosite, lapis lazuli, labradorite, jade, danburite, quartz, red jasper, purple sodalite, aquamarine. 370 grams total, 20-57 m...

A thick cut and polished slice with banded agate and honeycomb crystals, central void framed with miniature crystals. 482 grams, 14.6 cm (5 3/4 ...

Triassic Period, circa 235 million years B.P. Comprising three cut section with one polished face showing attractive layering, some bark details. ...

The attractive internal structure filled with yellow and brown aragonite crystals. 2.77 kg, 21 cm (8 1/4 in.). [No Reserve] Ex Mineral Imports, ...

Eocene Period, circa 58-33 million years B.P. Crocodilienovum major crocodile egg on an irregular matrix. 312 grams, 10.3 cm (4 in.). [No Reserve...

Devonian Period, circa 400 million years B.P. A square box carved from fossiliferous stone, the lid set with a larger Goniatite sp. specimen. 548...

Devonian Period, circa 400 million years B.P. A large Goniatite specimen set on a textured matrix. 626 grams, 18 cm (7 in.). [No Reserve] From At...

Triassic Period, circa 235 million years B.P. Comprising twenty cut branch sections of petrified wood with some bark details. 1.42 kg total, 35-9...

Each with facetted edges, showing interesting internal inclusions. 165 grams total, 70-75 mm (2 3/4 - 3 in.). [3, No Reserve] From Brazil. Ex Mi...

Eocene Period, circa 58-36 million years B.P. Comprising three rounded matrices each with Knightia alta specimen. 163 grams total, 72-82 mm (2 3/...

Devonian Period, circa 417-354 million years B.P. A large Cambropallas telesto trilobite on a textured matrix. 1.52 kg, 24 cm (9 1/2 in.). [No Re...

Ordovician Period, circa 510-445 million years B.P. Mixed group of various sizes, all with preserved scales and tripartite body structure. 1.56 k...

Each with intergrown crystals of various sizes displaying typical striations, from Huanuco, Peru. 480 grams total, 25-52 mm (1 - 2 in.). [9, No ...

A trio of rounded geodes, each unopened. 518 grams total, 49-69 mm (2 - 2 3/4 in.). [3, No Reserve] From Brazil. Ex Mineral Imports, London, UK....

Ordovician Period, circa 485-444 million years B.P. An irregular matrix with a single Petraster sp. specimen. 550 grams, 12.1 cm (4 3/4 in.). [No...

Oligocene Period, circa 45 million years B.P A large polished piece with an insect inclusion. 2.9 grams, 27 mm (1 in.). [No Reserve] From Primors...

Cretaceous Period, circa 125-113 million years B.P. Comprising two teeth with some tooth; repaired. 35 grams total, 66 mm each (2 1/2 in.). [2, N...

Carboniferous Period, over 3 million years B.P. A polished section containing Diptera and other inclusions. 2.5 grams, 30 mm (1 1/4 in.). [No Res...

Comprising egg-shaped specimens of fossilised coral, orange alabaster and one in white material with a hole to the base, and an agate sphere. 87...

Cretaceous Period, circa 145-65 million years B.P. Comprising four Mosasaur Prognathodon teeth set in a jaw fragment with other bone fragments. 1...

A triangular section with deep-coloured prismatic crystals. 543 grams, 11.2 cm (4 3/8 in.). [No Reserve] From Brazil. From a Lincolnshire, UK, c...

A section of white stalagmite showing natural ripples to one face. 2.28 kg, 39 cm (15 3/8 in.). [No Reserve] Ex West Country, UK, collection, 19...

Ordovician Period, circa 485.4-443.8 million years B.P. A rounded matrix containing a number of Ophiuroidea sp. specimens. 740 grams, 19 cm (7 1/...

Carboniferous Period, circa 3 million years B.P. The terminal of a droplet containing five flying insects and other inclusions, repaired. 3.34 gr...

An irregular slab showing typical banding. 396 grams, 26.5 cm (10 3/8 in.). [No Reserve] From Castleton, England. Ex Mineral Imports, London, UK...

Oligocene Period, circa 45 million years B.P. Large polished section with numerous inclusions and small internal areas of iridescence. 138 grams,...

Comprising a number of large, mainly clear prismatic points. 1.37 kg total, 7.2-11.2 cm (2 7/8 - 4 3/8 in.). [20, No Reserve] From Brazil. Ex Mi...

Including: sodalite, malachite, citrine, peacock ore, green fuchsite, and others. 1.55 kg total, 4.2-10 cm (1 5/8 - 4 in.). [10, No Reserve] Ex ...