An acorn-shaped vessel with fluted body and lid, narrow flat base and onion-knop finial to the lid. 404 grams, 13 cm high (5 1/8 in.). [No Reser...

Carved from a brown veined stone as a standing goat with curving horns. 90 grams, 77 mm (3 in.). [No Reserve] Ex S.M. London collection, UK, 197...

Comprising six translucent and opaque polished slices showing banding and some crystallisation, five dyed. 435 grams total, 9-12.2 cm (3 1/2 - 4...

Cretaceous Period, 145-65 million years B.P. Showing good enamel and some root. 60.3 grams, 82 mm (3 1/4 in.). [No Reserve] From Morocco, North A...

Comprising six clusters with prismatic crystals, mainly colourless to white, one with an interesting green inclusion to the larger crystal; each ...

Jurassic Period, circa 199-145 million years b.P. A circular composite plate composed of overlapping ammonites. 723 grams, 23 cm wide (9 in.). [N...

Comprising: malachite, agate geode half, calcite on matrix, polished crystal slice, stromatolite, and vesicular andesite(?). 680 grams total, 4....

Silurian Period, circa 445-416 million years B.P. Comprising a single Scyphocrinus elegans specimen with good detail. 664 grams, 14.5 cm (5 3/4 i...

Comprising one hundred golden brown 'sputnik' clusters. 774 grams total, 19-30 mm (3/4 - 1 1/4 in.). [100, No Reserve] Ex Mineral Imports, Londo...

Comprising mainly colourless topaz pebbles, each with one cut face. 139 kg total, 20-48 mm (3/4 - 1 7/8 in.). [50, No Reserve] Ex Mineral Import...

Devonian Period, circa 400 million years B.P. A shallow dish carved from fossiliferous stone and set with a central Goniatite sp. specimen. 165 g...

Carboniferous Period, circa 359-299 million years B.P. A light-coloured specimen on a roughly rectangular matrix. 169 grams, 76 mm (3 in.). [No R...

A large section of white stalagmite displaying natural rippling. 7.28 kg, 47 cm (18 1/2 in.). [No Reserve] Ex West Country, UK, collection, 1990...

On a dark coloured amethyst geode matrix; the metal branches tipped with polished translucent quartz pebbles. 481 grams, 18 cm (7 in.). [No Rese...

Middle Pennsylvanian Period, circa 300 million years B.P. Comprising two bifacial matrices showing good leaf formation. 360 grams total, 10.6-13....

The nodule split into two halves to expose the crystal lined centre of dyed vibrant purple crystals. 1.43 kg total, 10.7-11.4 cm (4 1/4 - 4 1/2 ...

Comprising: mugearite from Arthur's Seat, Edinburgh, Scotland; tonalite from Ardnamurchan, West Scotland; dunite serpentine from Lizard, Cornwall...

Comprising five irregular slices with two polished faces showing contrasting banding. 546 grams total, 11.2-16.2 cm (4 3/8 - 6 3/8 in.). [5, No ...

Eocene Period, circa 58-36 million years B.P. A rounded matrix with multiple Knightia alta specimens. 135 grams, 12.2 cm (4 3/4 in.). [No Reserve...

Comprising three clear quartz marbles, each with needle-like inclusions of rutile. 43 grams total, 21-22 mm (3/4 in.). [3, No Reserve] Ex proper...

Comprising three large polished slices, each showing natural banding and one with quartz crystals to the centre; two dyed. 750 grams total, 14.2...

A roughly triangular section with small light purple amethyst crystals. 1 kg, 24 cm (9 1/2 in.). [No Reserve] From Brazil. Ex Mineral Imports, L...

Comprising six large clear to translucent prismatic points with inclusions. 1.49 kg total, 67-96 mm (2 5/8 - 3 3/4 in.). [6, No Reserve] From Br...

Devonian Period, circa 400 million years B.P. Comprising three torpedo-shaped matrices with Orthoceras sp. specimens. 252 grams total, 12.2-14.9 ...

Comprising three egg-shaped agate specimens and one in blue calcite(?). 780 grams total, 60-68 mm (2 3/8 - 2 5/8 in.). [4, No Reserve] Burwell c...

Comprising eight dyed geode halves, each with an exposed crystal-lined internal cavity. 672 grams total, 58-74 mm (2 1/4 - 2 7/8 in.). [8, No Re...

A good study group of various fossilised corals, some cut sections, and some displaying multiple branches. 2.8 kg total, 2.3-20.5 cm (7/8 - 8 in...

Including an ashtray and two paperweights carved from banded stone. 1.06 kg total, 50-79 mm (2 - 3 1/8 in.). [3, No Reserve] Burwell collection,...

Eocene Period, circa 58-36 million years B.P. A single Knightia alta specimen. 71 grams, 86 mm (3 3/8 in.). [No Reserve] From Wyoming (Green Rive...

Ordovician Period, circa 510-445 million years B.P. Mixed group of various sizes, all with preserved scales and tripartite body structure. 983 gr...

Jurassic Period, circa 200-145 million years B.P. Comprising four vertebrae with remains of processes, on a sandstone matrix wrapped in a plaster ...

Eocene Period, 58-36 million years B.P. Diplomystus sp. fossil fish on a matrix slab showing good detail to the spine and ribs. 3.7 kg, 27.5 cm (...

Triassic Period, circa 230 million years B.P. A cut section with two polished faces showing the attractive banding within the trunk. 409 grams, 1...

Each displaying dramatic colourful banding on the cut face. 2.15 kg total, 12.8-14.4 cm (5 - 5 7/8 in.). [3, No Reserve] From Malawi. Ex Mineral...

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 417-354 million years B.P. Comprising five polished shapes showing the internal structure of the head. 123 grams total, 33...

20th century A.D. Restrung with mainly facetted biconical beads with one cornerless cube bead. 166 grams, 60 cm (23 5/8 in.). [No Reserve] Ex Lon...

Comprising three large slices displaying mainly red, grey and brown banding. 855 grams total, 18.2 - 20.7 cm (7 1/4 - 8 1/8 in.). [3, No Reserve...

Comprising three obelisks with facetted edges. 81 grams total, 44-58 mm (1 3/4 - 2 1/4 in.). [3, No Reserve] From Brazil. Ex Mineral Imports, Lo...

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, ...

A cut and polished half displaying a wolf-shaped formation of brown aragonite within lighter limestone. 242 grams, 84 mm (3 1/4 in.). [No Reserv...

Eocene Period, circa 58 million years B.P. Comprising three irregular matrices, each with 'Dawn Redwood' specimen. 118 grams total, 50-60 mm (2 -...

Triassic Period, circa 235 million years B.P. Agatized and displaying deep red and brown colours. 2.5 kg, 30.6 cm (12 in.). [No Reserve] From Mad...

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...

Comprising six crystal clusters, each with attractive clear prismatic crystals. 366 grams total, 50-76 mm (2 - 3 in.). [6, No Reserve] From Braz...

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...

On a light coloured amethyst geode matrix; the metal branches tipped with polished darker amethyst pebbles. 380 grams, 15.5 cm (6 1/8 in.). [No ...