Antiquities, Coins & Collectables

A piece of one of the most interesting Chondrites found in northwest Africa; a much studied meteorite, classified variously as L4 to L6, with some...

A large piece of one of the most interesting Chondrites found in northwest Africa; a much studied meteorite, classified variously as L4 to L6, wit...

An unusual specimen of quartz crystals with a natural red iron oxide coating, in white card tray. 130 grams, 79mm (3"). From the historic ‘Victo...

Cretaceous Period, 145-65 million years BP. A group of three Carcharodontosaurus saharicus teeth and a Bahariasaurus ingens tooth all from the Teg...

Cretaceous Period, 145-65 million years BP. A large tooth of a mid-sized Bahariasaurus ingens carnivore from the Tegana Formation of Morocco. 19...

An unusually fine specimen of sphalerite and quartz, with large, well-formed sphalerite crystals covered with prismatic quartz crystals, from Huan...

A large piece of opal in matrix with colour diffracting mostly in blue and green. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 2008, p.232-23...

A group of fifty large pale blue calcite pieces, some with yellow or red colour. 3.32 kg total, 33-65mm (1 1/4 - 2 1/2"). From the historic ‘Vic...

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...

A massive boulder of pyrite crystals ranging in size from minute to larger formations, deeply striated and with a bright lustre. See Bonewitz, Dr....

Jurassic Period, 203-145 years BP. A fossil of the 'brittle star' Geocoma elegans from Ardiche, France, in old white card tray with A. B. Cotteril...

A group of three natural pearls, two of slightly irregular shape, one almost spheroid, all with lustrous sheen, un-drilled but with bases flattene...

Mid-Triassic Period, 240 million years BP. A fossil of Pecten sp. on a matrix of micaceous, fine-grained sandstone, from Yorkshire, with old adhes...

An unusually fine group of sharply formed, deep green epidote crystals with quartz on a rock groundmass, from the famous Green Monster Mountain lo...

Lower Cretaceous Period, 120 million years BP. A large complete fossil Vinctifer sp. fish from the Santana Formation, Ceara, Brazil. 914 grams, ...

A mixed group of fossils including an ammonite in matrix, ammonite fragments and a fern leaf. 186 grams total, 1.5-10.5cm (1/2 - 4"). Property o...

A group of four carved gemstone animals, including a pig and a turtle in snowflake obsidian, and a duck and a dolphin in spotted jasper. See Bonew...

A sheet of well-formed quartz crystals on a matrix of pyrite-impregnated quartz, many of the crystals naturally frosted and with adhering tiny bla...

Jurassic Period, 200-145 million years BP. A group of two Gryphaea arcuata fossil bivalves, also called 'Devil's Toenails', possibly from Lower Li...

Carboniferous-Cretaceous Period, 359-66 million years BP. A group of six fossils of different cllasses and periods, including four bivalves, a gon...

A very unusual quartz encrustation, originally formed over a group of calcite crystals which were subsequently dissolved away leaving the quartz c...

Middle Jurassic, Inferior Oolite, Aalenian Stage, 170 million years BP. A group of two fossil ammonites on matrix, one Graphoceras sp. and the oth...

Jurassic Period, 200-145 million years BP. A group of two fossil corals from Wales, in old white card trays with A.B. Cotterill Collection, Wollat...

A classic, lustrous 'bow-tie' crystal of the zeolite stilbite from Maharashita, India, in old white card tray. See Bonewitz, Dr. Ronald Louis, Roc...

Eocene Period, 50 million years BP. A fossil Otodus obliquus vertebra in matrix; with label. 128 grams, 90mm (3 1/2"). Property of a Kent, UK co...

Eocene Period, 58-36 million years BP. A group of eight Metasequoia occidentalis mosaic foliage specimens from the McAbee Fossil Beds, Cache Creek...

Silurian Period, 444-415 million years BP. A group of seven corals from Salop, UK, in old white card tray with A.B. Cotterill Collection, Wollaton...

Miocene Period, 23-5 million years BP. A large fossil porpoise vertebra; with label. 200 grams, 90mm (3 1/2"). Property of a Kent, UK collector;...

Carboniferous-Jurassic, 359-145 million years BP. A group of seven brachiopod specimens, including four spirifers (two in matrix), and three tereb...

A large, multiple-twin crystal of dravite (brown) tourmaline, with adhering muscovite matrix. See Bonewitz, Dr. Ronald Louis, Rocks & Minerals, 20...

Carboniferous Period 359-299 million years BP. A group of two limestone sea-floor specimens with numerous crinoid stem segments and bryozoans from...

Carboniferous Period, 359-299 million years BP. A group of two crinoid calicies of the species Amphorocrinas gigas with well-preserved plate devel...

A mixed group of seven fossils, comprising two corals, two gastropods, a brachiopod, and a split shale nodule exposing a fossil fern, and a minera...

A slice of greenstone matrix with numerous areas of bright native copper, with an acrylic finish to prevent oxidation of the copper. See Bonewitz,...

Cambrian-Ordovician Period, 541-443 million years BP. A group of three trilobites, including one complete and two Pygidiae sp., in old white card ...

An unusual calcite geode still encased in its limestone matrix, showing two distinct growth phases: first, the cavity was lined with calcite cryst...

Ordovician Period 488-443 million years BP. A positive and negative cast of the trilobite Ogygius corndensis in shale, from Wales, in old white ca...

Carboniferous Period, 359-299 million years BP. A group of four crinoid specimens comprising two with crinoid arms, one round crinoid stem, and on...

Eocene Epoch, 56-49 million years BP. A group of three Cardita sp. bivalves from Sussex, with A.B. Cotterill Collection, Wollaton, Nottingham, UK,...

A group of four Kent fossils comprising a shark's tooth in chalk, an echinoid spine in chalk, an ammonite segment, and a coral,in old white card t...

Carboniferous, 359-299 million tears BP. A group consisting of four specimens of stigmaria, the roots of coal forest lycopsid trees such as Sigill...

Silurian-Jurassic Periods, 444-145 million years BP. A group of fifteen mixed fossils including twelve bivalves, a brachiopod, an ammonite with ir...

Jurassic Period, 201-145 million years BP. A cut and polished piece of limestone with numerous belemnite fossils showing internal mineral structur...

Jurassic Period, 200-145 million years BP. A segment of Jurassic sea floor with a complete ammonite on one side, a complete ammonite on one edge, ...

Carboniferous Period, 359-299 million years BP. A group of three plant fossils, one lepidendron with adhesive label to back and A.B. Cotterill Col...

A large sheet of white nailhead calcite crystals on matrix, from the Rodopi Mountain region, Bulgaria. See Bonewitz, Dr. Ronald Louis, Rocks & Min...

A large sheet of calcite crystals on matrix, with a few individual crystals up to 45 mm, and a very large number of smaller crystal, mostly with m...

An unusual growth of radiating quartz crystals with an overgrowth on two sides of white, nailhead calcite crystals, from Bulgaria. See Bonewitz, D...

Cretaceous Period, Aptian Stage, 125-113 million years BP. A large tooth of Bahariasaurus ingens, a mid-sized carnivore from the Cretaceous Period...

Cretaceous Period, 145-65 million years BP. A group of three fossil ammonites, one with old collector's label 'Mortoniceras Inflatum / (found at C...