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Devonian Period, circa 417-354 million years B.P.. Comprising three polished, dome-shaped buttons, each with a central Goniatite sp. specimen; sup...
![Natural History - Polished Agate Pebble Group [100].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/e61bc6a2-8995-4e66-8a3d-b1070111c9bf.jpg?h=210)
Comprising different sizes and colours ranging from white to red and dark brown, some with attractive banding. 1.18 kg total, 21-37 mm (3/4 - 1 1...
Cretaceous Period, circa 145-93 million years B.P.. With some good enamel, from Carcharodontosaurus saharicus. 10.3 grams, 51 mm (2 in.). From th...
![Natural History - Tiger's Eye, Red Jasper and Agate Polished Block Group [3].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/029ba7d3-cdfe-4e73-b584-b1070111cb4d.jpg?h=210)
Comprising three specimens, each with at least one polished face. 938 grams total, 7.1-10.5 cm (2 3/4 - 4 1/8 in.). Ex Mineral Imports, London, U...
Upper Palaeocene, Thanetian Stage, circa 56 million years B.P.. From Otodus obliquus Agassiz 1843 (mackerel shark). 155 grams, 65 mm (2 5/8 in.)....
Devonian Period, circa 417-354 million years B.P.. Phacops speculator specimen on a matrix. 193 grams, 76 mm (3 in.). From the Atlas Mountains, H...
Middle Cretaceous Period, circa 150 million years B.P.. Cleoniceras sp. displaying the distinctive pattern of the cross-section chambers. 307 gra...
The attractive internal structure filled with yellow and brown aragonite crystals. 3.66 kg, 21 cm (8 1/4 in.). Ex Mineral Imports, London, UK.Gre...
![Natural History - Pyrite Chunk 'Fools Gold' Specimen Group [100].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/d705fb87-ed19-47b8-b9ba-b1070111d00a.jpg?h=210)
Comprising a number of specimens with metallic lustre. 1.3 kg total, 20-35 mm (3/4 - 1 3/8 in.). Ex Mineral Imports, London, UK.Gregory, Bottley ...
![Natural History - Large Rose Quartz Crystal Specimen Group [6].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/269c95d3-a8a9-427e-b52f-b1070111d123.jpg?h=210)
Comprising six large chunks in vivid pink shade. 995 grams total, 66-87 mm (2 5/8 - 3 3/8 in.). Ex Mineral Imports, London, UK.Gregory, Bottley &...
![Natural History - Chrysocolla Mineral Sample Group [8].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/a3ebb69d-5873-4731-801a-b1070111d243.jpg?h=210)
Comprising eight irregular dark green pieces. 192 grams total, 33-49 mm (1 1/4 - 2 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd ...
Upper Devonian Period, circa 419-358 million years B.P.-20th century A.D.. Including a Phacops rana trilobite and other types. 890 grams total, 5...
![Natural History - Cut and Polished Agate Crystal Geode End Group [4].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/16d7166e-2d44-49cb-854b-b1070111d417.jpg?h=210)
Comprising four cut and polished ends, one with light coloured banding; one with milky white layer above dark brown banding; one with dark rounded...
![Natural History - Large Pink Dolomite Crystal Display Section Group [5].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/de829ee8-06be-4ca2-81cb-b1070111d4fe.jpg?h=210)
Comprising five cut sections with marcasite inclusions. 1.79 kg total, 9.6-12.5 cm (3 3/4 - 5 in.). From Brazil.Ex Mineral Imports, London, UK.Gr...
Ordovician Period, circa 485-444 million years B.P.. Comprising four Petraster sp. specimens on matrices. 716 grams total, 7-12 cm (2 3/4 - 4 3/4...
![Natural History - Dravite Tourmaline Crystal Specimen Group [11].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/70505b63-23bc-49d3-bc3e-b1070111d7ad.jpg?h=210)
Comprising variously sized specimens in mica. 366 grams total, 16-49 mm (5/8 - 2 in.). Ex Mineral Imports, London, UK.Gregory, Bottley & Lloyd (G...
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...
Devonian Period, circa 380 million years B.P.. Displaying the characteristic head formation. 215 grams, 79 mm (3 1/8 in.). From the Western Sahar...
![Natural History - Medium Green Fuchsite Mineral Specimen Group [50].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/d3b820dc-99fe-496b-9aa7-b1070111da3a.jpg?h=210)
Comprising large irregular specimens of light to dark green colour. 1.31 kg total, 22-74 mm (7/8 - 3 in.). Ex Mineral Imports, London, UK.Gregory...
Comprising a large mass of large and small crystals; supplied in a labelled specimen tray. 475 grams, 83 mm (3 1/4 in.). From Huanaco, Peru.Ex Mi...
![Natural History - Agate Crystal Geode Cut Section Collection [3].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/8fc18365-8ade-41d7-85e2-b1070111f969.jpg?h=210)
Comprising three examples in enhanced blue colour, two showing an internal cavity filled with small quartz crystals. 962 grams total, 7.1-11 cm (...
Lower Jurassic Period, Toarcian Stage, circa 180 million years B.P.. Hildoceras sp. in an irregular shale pebble. 1.08 kg, 13.5 cm (5 1/4 in.). F...
Fell 6000-5000 years B.P.. An iron Campo Del Cielo (IAB) meteorite. See Graham, Bevan and Hutchison ed., Catalogue of Meteorites, Natural History ...
Cretaceous Period, circa 145-65 million years B.P.. Comprising a pair of Prognathodon sp. teeth with roots on an matrix. 863 grams total, 12-13 c...
Triassic Period, circa 250-200 million years B.P.. A section of fossilised wood with a polished face. 735 grams, 17 cm (6 3/4 in.). From Madagasc...
Jurassic-Pliocene Period, circa 190-2.5 million years B.C. Comprising a lamnoid-type vertebra with visible septa, the Otodus megalodon tooth with ...
Eocene Period, circa 54 million years B.P.. A large Otodus obliquus tooth from the front of the mouth with good serrations. 57.7 grams, 82 mm (3 ...
Pliocene Period, 5.2-2.5 million years B.P.. Depicting a stylised face with emphasised detailing. 91 grams, 92 mm (3 5/8 in.). From the Island of...
Pliocene Period, 5.2-2.5 million years B.P.. Triangular tooth of Carcharocles megalodon displaying some good polished enamel and serrations to the...
Eocene Period, 56-33 million years B.P.. Comprising six Otodus obliquus teeth set in a sandstone matrix. 1 kg, 15.5 cm (6 1/8 in.). From a Cambri...
Comprising various sizes of pale pink chips for decorative use. 527 grams total, 1-26 mm (1/8 - 1 in.). Ex Mineral Imports, London, UK.Gregory, B...
Natural History - Historic Boxed Greisen Mineral Sample From Cornwall and Dunite-Olivinite From Nort
Both examples unpolished and with old labels identifying them to be from collection no.8 and 80. 1.3 kg total, 9.4-11 cm (3 3/4 - 4 3/8 in.). Fro...
![Natural History - Quartz Rock Crystal Specimen Group [100].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/822830e2-2d8b-4f82-ac4f-b1070112056d.jpg?h=210)
Comprising a quantity of clear and opaque specimens, some with multiple points. 1.15 kg total, 29-45 mm (1 1/8 - 1 3/4 in.). From Brazil.Ex Miner...
Cretaceous Period, circa 145-65 million years B.P.. Comprising of Prognathodon sp. tooth with root on a sandstone matrix. 168 grams, 10 cm (4 in....
Eocene Period, circa 50 million years B.P.. Comprising a large example of turtle coprolite (fossilised turtle excrement). 181 grams, 76 mm (3 in....
Carboniferous-Cretaceous Period, circa 305-113 million years B.P.. Comprising a mixed group of nine fossils in five card trays, different species ...
Pleistocene Period, circa 1.8 million years B.P.. Comprising two sections of Odocoileus virginianus antler. 196 grams total, 8.7-10.2 cm (3 3/8 -...
Cut to a rough square-shape with well-formed orange crystals. 1.02 kg, 14.3 cm (5 5/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, B...
![Natural History - Boxed Mineral Specimen Group [6].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/a3361fe7-c2e3-4fb6-bfba-b107011224d0.jpg?h=210)
Comprising: galena from Tri-State, USA; calcite from Mexico; fluorite from Illinois, USA; fluorite with hematite from Tri-State, USA; pyrite from ...
Devonian Period, circa 417-354 million years B.P.. Comprising polished Orthoceras sp. specimens on a textured freestanding matrix. 5.3 kg, 47 cm ...
![Natural History - Quartz Rock Crystal Point Group [15].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/68709d3c-77cd-4622-899b-b10701124035.jpg?h=210)
Comprising fifteen large prismatic points. 1.09 kg total, 56-81 mm (2 1/4 - 3 1/8 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bottl...
![Natural History - Amethyst Crystal Chunk Group [100].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/ccdb6f4c-a6eb-466f-8486-b1070112416c.jpg?h=210)
Comprising mainly dark purple crystal specimens. 1.7 kg total, 27-45 mm (1 - 1 3/4 in.). From Brazil.Ex Mineral Imports, London, UK.Gregory, Bott...
![Natural History - Brown Calcite Mineral Specimen Group [100].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/01361d1a-8805-485f-a0c5-b10701124272.jpg?h=210)
In labelled bags, each with fifty samples. 1.11 kg total, 16-45 mm (5/8 - 1 3/4 in.). From Mexico.Ex Mineral Imports, London, UK.Gregory, Bottley...
Cretaceous Period, 145-65 million years B.P.. From Deltadromeus agilis displaying good enamel and serrations. 0.91 grams, 20 mm (3/4 in.). From M...
Eocene Period, circa 56-33 million years B.P.. Showing details of the skull and eye-socket, lateral fins and tail; repaired. 1.23 kg, 21.5 cm (8 ...
Silurian Period, circa 443-416 million years B.P.. Presenting a fossil crinoid in a matrix, possibly Scyphocrinus sp., with the remain of another ...
Eocene Period, circa 58 million years B.P.. Knightia alta specimen on a rectangular matrix. 300 grams, 13.4 cm (5 1/4 in.). From Wyoming (Green R...
Cretaceous Period, circa 125-113 million years B.P.. Comprising two teeth with partial roots; repaired. 19 grams total, 52 mm (2 in.). From in th...
Devonian Period, circa 417-354 million years B.P.. Formed as a freestanding three-dimensional formation of torpedo-shapes on a chiselled matrix; e...
Eocene Period, 58-36 million years B.P.. Priscacara liops fish in rectangular matrix. 613 grams, 18.5 cm (7 1/4 in.). From Wyoming (Green River F...
Fell 6000-5000 years B.P.. An iron Campo Del Cielo (IAB) meteorite. See Graham, Bevan and Hutchison ed., Catalogue of Meteorites, Natural History ...
Over 3 million years B.P.. Containing several insects and other inclusions. 11.2 grams, 10.3 cm (4 in.). From Madagascar.Acquired 1950s-1960s.Fro...
Cretaceous Period, circa 145-65 million years B.P.. Comprising various bone and rib fragments, a large vertebra and jaw fragments with teeth from ...
Spherical geode cut in half to expose the internal cavity filled with dark purple prismatic amethyst crystals and large quartz crystals with goeth...
Eocene Period, circa 58 million years B.P.. A negative impression of Diplomystus sp. specimen on a rectangular matrix. 441 grams, 15 cm (5 7/8 in...
Ordovician Period, circa 485-444 million years B.P.. Comprising a Petraster sp. specimen on matrix. 297 grams, 85 mm (3 3/8 in.). From a Cambridg...
Over 3 million years B.P.. Containing several insects and other inclusions. 18 grams, 10.5 cm (4 1/8 in.). From Madagascar.Acquired 1950s-1960s.F...
![Natural History - Large Amethyst Crystal Chunk Group [12].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/d3555444-59d8-4c36-8441-b10701124fd4.jpg?h=210)
Comprising twelve dark purple pieces of prismatic crystals. 1.36 kg total, 43-64 mm (1 5/8 - 2 1/2 in.). From Brazil.Ex Mineral Imports, London, ...
Middle Cretaceous Period, circa 150 Mmillion years B.P.. Cleoniceras sp. displaying the distinctive pattern of the cross-section chambers on the p...
![Natural History - Boxed Topaz Mineral Specimen Group [10].](https://portal-images.azureedge.net/auctions-2024/srtime10109/images/ff7e0366-cd2a-4c0f-b3bb-b10701125161.jpg?h=210)
Each specimen displaying prismatic crystals on matrix. 94 grams total, 19-28 mm (3/4 - 1 1/8 in.). From Mexico.Ex Mineral Imports, London, UK.Gre...
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