Ten smooth pieces showing dark banding, four with a cut base. 120 grams total, 20-31 mm (3/4 - 1 1/4 in.). [10, No Reserve] From Democratic Repu...

Each having formed a circular array of flat crystals. 452 grams total, 14-27 mm (1/2 - 1 in.). [50, No Reserve] Ex Mineral Imports, London, UK. ...

Comprising three large white calcite rhomboids on a rusty red matrix with dusting of smaller crystals. 242 grams, 96 mm (3 3/4 in.). [No Reserve...

Comprising six geode sections with clusters of purple amethyst crystals, one with clear quartz crystals. 1.03 kg total, 7.8-11.6 cm (3 - 4 1/2 i...

Comprising three cut geode sections with richly coloured amethyst crystals. 1.84 kg total, 11.2-13 cm (4 3/8 - 5 1/8 in.). [3, No Reserve] From ...

Devonian Period, circa 400 million years B.P. Comprising variously sized polished Orthoceras sp. specimens on a textured freestanding matrix. 903...

Comprising large geode sections lined with lavender and dark purple coloured amethyst crystals. 1.78 kg total, 7.8-13.5 cm (3 - 5 1/4 in.). [6, ...

Jurassic Period, circa 199-145 million years B.P. A cut and polished section of petrified wood trunk. 230 grams, 13.4 cm (5 1/4 in.). [No Reserve...

Palaeocene Period, 66-56 million years B.P. The upper part of a fossil Argochampsa krebsi crocodile skull on a sandy matrix wrapped in a plaster f...

Lower Jurassic, circa 199-190 million years B.P. Containing small Cymbites, and other ammonites, the three larger specimens set on the matrix. 5....

Jurassic Period, Toarcian Stage, circa 180 million years B.P. Rounded pebble half containing a Dactylioceras commune specimen. 308 grams, 80 mm (...

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 trio of rounded geode halves, each with a large exposed internal crystal-filled cavity, one with a large single clear crystal. 662 grams total...

Eocene Period, circa 58-36 million years B.P. Comprising three Knightia alta specimens. 438 grams, 12 cm (4 3/4 in.). [No Reserve] From Wyoming (...

Dark blue polished pebbles with white veining. 450 grams total, 15-26 mm (5/8 - 1 in.). [100, No Reserve] Ex Mineral Imports, London, UK. Gregor...

Comprising unpolished tourmaline crystals with quartz and mica, including an amethyst crystal. 178 grams total, 11-37 mm (3/8 - 1 1/2 in.). [28,...

Ordovician Period, circa 510-445 million years B.P. Comprising three specimens; repaired. 185 grams total, 64-76 mm (2 1/2 - 3 in.). [3, No Reser...

Cretaceous Period, 145-65 million years B.P. An irregular sandstone matrix set with a Mosasaur prognathodon sp. and an Otodus obliquus sp. teeth a...

Devonian Period, circa 417-354 million years B.P. A mortality plate showing a cluster of Flexicalymene sp. trilobites. 2.53 kg, 27 cm (10 5/8 in....

A large quantity of dark brown specimens with contrasting areas. 1.24 kg total, 31-50 mm (1 1/4 - 2 in.). [100, No Reserve] Ex Mineral Imports, ...

A complete agate cut in two halves and both with polished cut face, showing contrasting banding in salmon pink, blue, grey and purple colours. 1...

Comprising: volcanic ash from Borrowdale, Cumberland; hornblende from Sutherland; granite-aplite from Devon; and luxullianite; three with old lab...

Cretaceous Period, circa 145-66 million years B.P. With cut base, possibly Calycoceras. 1.06 kg, 11.3 cm (4 1/2 in.). [No Reserve] From a Cambrid...

A naturally formed marvel displaying dark banding to the outer edges and wide crystal banding to the central areas, two opaque areas of agate res...

Comprising six cut geode halves with polished cut face, four with a large internal cavity filled with quartz ad calcite crystals; two with an int...

Comprising fifty irregular samples with dusting of bright yellow crystals. 828 grams total, 19-57 mm (3/4 - 2 1/4 in.). [50, No Reserve] Ex Mine...

Polished to expose the internal banding, three freestanding with cut bases; three dyed. 2.32 kg total, 8.7-11.6 cm (3 3/8 - 4 1/2 in.). [5, No R...

Devonian Period, circa 417-354 million years B.P. Hollardops mesacristata on a matrix. 154 grams, 72 mm (2 3/4 in.). [No Reserve] From Atlas Moun...

Cretaceous Period, circa 90 million years B.P. Two horned ammonites with regularly disposed spines to the outer shell; repaired. 1.99 kg, 17 cm w...

Fell 12th February 1947 A.D. A coarse octahedrite class IIB iron meteorite; cleaned. 28.4 grams, 32 mm (1 1/4 in.). [No Reserve] From a Cambridge...

Jurassic Period, circa 199-145 million years B.P. Polished specimen showing attractive pattern formation. 180 grams, 92 mm (3 5/8 in.). [No Reser...

A trio of unopened rounded geodes. 320 grams total, 45-66 mm (1 3/4 - 2 5/8 in.). [3, No Reserve] From Brazil. Ex Mineral Imports, London, UK. G...

Fell 6000-5000 years B.P. A nickel-iron meteorite (IAB) with a suspension loop and cord for wearing. 8.35 grams total, stone: 20 mm (3/4 in.). [N...

Found 1998 A.D. A cut end section with two polished ends of Dar al Gani 412 CK5 carbonaceous chondrite, inked collector's note 'DAG 412' to one si...

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

Devonian Period, circa 417-354 million years B.P. Hollardops mesacristata on a matrix. 295 grams, 85 mm (3 3/8 in.). [No Reserve] From a Cambridg...

Triassic Period, circa 235 million years B.P. Comprising fifty sections of petrified wood showing some bark details. 1.08 kg total, 25-59 mm (1 -...

Devonian Period, 444-359 million years B.P. The aquatic arthropod showing good detail to the carapace, resting on an irregular matrix. 120 grams,...

Comprising one hundred geode sections with vibrant prismatic amethyst crystals. 2.33 kg total, 23-72 mm (7/8 - 2 7/8 in.). [100, No Reserve] Fro...

Displaying natural veining and areas of darker colour. 843 grams, 11.4 cm (4 1/2 in.). [No Reserve] From Aust Cliff, River Severn, Gloucestershi...

Jurassic Period, circa 199-145 million years B.P. A substantial Cleoniceras sp. specimen cut in two halves to reveal the internal crystal lined ch...

Comprising: a large section of clear prismatic quartz crystal; yellow calcite; a geode slice with crystal lined cavity; cut spherical geode half ...

Devonian Period, circa 400 million years B.P. A display comprising four polished Goniatite sp. specimens on a textured freestanding matrix. 1.17 ...

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

Devonian Period, circa 385-359 million years B.P. A beautifully prepared Dicranurus Monstrosus showing the distinctive curving occipital spines. ...

Found 2003 A.D. A cut and polished slice of NWA 1906. specimen weight 16 grams, 54 mm (2 1/8 in.). [No Reserve] From Morocco/Algeria, North West ...

Devonian Period, circa 417-534 million years B.P. Comprising six circular coasters and a stand carved from fossiliferous stone containing multiple...

Cretaceous Period, circa 110 million years B.P. Showing two Carpopenaeus sp. specimens. 248 grams, 12.6 cm (5 in.). [No Reserve] From Lebanon. Fr...

Jurassic Period, Toarcian Stage, circa 180 million years B.P. An opened pebble containing a Dactylioceras commune specimen. 211 grams total, 59-6...

Comprising thirty-two irregular specimens. 2.25 kg total, 28-48 mm (1 1/8 - 1 7/8 in.). [32, No Reserve] Ex Mineral Imports, London, UK. Gregory...

Devonian Period, circa 400 million years B.P. A shallow bowl formed from fossiliferous stone containing Orthoceras sp. specimens. 229 grams, 12.2...

Comprising one hundred intergrown crystal clusters. 1.12 kg total, 18-28 mm (5/8 - 1 in.). [100, No Reserve] From Huanuco, Peru. Ex Mineral Impo...

Comprising fifty light green specimens. 2.72 kg total, 39-65 mm (1 1/2 - 2 1/2 in.). [50, No Reserve] Ex Mineral Imports, London, UK. Gregory, B...

Each displaying grey or brown banding in contrasting colours. 1.71 kg total, 66-72 mm (2 5/8 - 2 7/8 in.). [10, No Reserve] From Brazil. Ex Mine...