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LOT 1821
Natural History - British Fossil Fern Group
CARBONIFEROUS PERIOD, CIRCA 310 MILLION YEARS B.P.
3 - 3 3/8 in. (281 grams total, 76-87 mm).
A group of three fern specimens including Alethopteris sp. and Sphenopteris laurenti. [3, No Reserve]
ProvenanceFrom the Middle Coal Measures, Clay Cross, Derbyshire, England.
From an old Oxfordshire, UK, fossil and mineral collection.
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AUCTIONS:
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Natural History - Cut and Polished Agate Crystal Geode Section Group
Sold for (Inc. bp): £33
A group of four agate geode sections, each with a blue-ish or brown-ish coloured cut face. 1.46 kg total, 8.4-14.1 cm
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Cut and Polished Agate Crystal Geode Slice Group
Sold for (Inc. bp): £39
A group of six cut and polished agate geode slices; colour-enhanced. 322 grams total, 8.8-10.7 cm
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Large Mocha Dendritic Agate Mineral 'Plant Picture' Stone
Sold for (Inc. bp): £20
A rectangular limestone matrix exhibiting finely formed dendrites of manganese oxide. 1.39 grams, 23.5 cm
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).