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_900x900.jpg "Natural History - Mimetite and Calcite Crystal Specimen")
_200x200.jpg "Natural History - Mimetite and Calcite Crystal Specimen")
.jpg "Natural History - Mimetite and Calcite Crystal Specimen")
LOT 1873
Natural History - Mimetite and Calcite Crystal Specimen
2 3/4 in. (150 grams, 71 mm).
A sphalerite matrix with small clusters of yellow mimetite crystals and large white hexagonal calcite crystals; supplied in a cardboard specimen tray. [No Reserve]
ProvenanceMineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
TimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
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Natural History - Cut and Polished Malawi Agate Geode Pair
Sold for (Inc. bp): £13
An attractive pair of Malawi agate geode cult halves, with polished faces. 1.1 kg total, 11.5 cm each
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Large Diplomystus Fossil Fish
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £208
A large Diplomystus sp. fossil fish in a rectangular shale matrix. 2.8 kg, 52.5 x 28.5 cm
From Wyoming, Green River Formation, U.S.A. From an old Lincoln, UK, collection.
In southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Ulinta, Lake Gosiute and Fossil Lake. These Eocene Lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time. -
Natural History - Barrandeops Fossil Trilobite
Devonian Period, 417-354 million years B.P.Sold for (Inc. bp): £46
A fossil Morocops barrandeops sp. trilobite on a matrix. 331 grams, 85 mm
From the Atlas Mountains, Hamar Laghdad Formation, Pragian, (Alnif), Morocco, North Africa. From an old Oxfordshire, UK, fossil and mineral collection.
