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LOT 2017
Natural History - Large Cut and Polished Agate Crystal Geode Slice
11 1/8 in. (660 grams, 28.2 cm).
A large blue-coloured cut and polished agate geode slice; colour-enhanced. [No Reserve]
ProvenanceMineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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LOT 2017
Natural History - Large Cut and Polished Agate Crystal Geode Slice
Sold for (Inc. bp): £117
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Natural History - Polished Amber with Spider Inclusion
Devonian Period, 417-354 million years B.P.Sold for (Inc. bp): £72
A polished specimen of amber displaying a spider inclusion. 4.87 grams, 33 mm
From the Baltic Sea Coast, Primorskoje mine, Kaliningrad. From an Essex, UK, collection. Accompanied by an illustrated identification card with collection number 3211. -
Natural History - Fossil Starfish
Ordovician Period, 485-444 million years B.P.Sold for (Inc. bp): £98
A fossil Petraster sp. starfish in matrix. 138 grams, 69 mm
From Katian Stage, Tioririne Formation, El Kaid Rami, Morocco, North Africa. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection. -
Natural History - 'Spartan Basalt' Polished Green Porphyry Section
Sold for (Inc. bp): £286
A large cut section of green porphyry mined in Greece, possibly in ancient Roman times. 1.22 kg, 18.1 cm
From Greece. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
Also known as Lapis Lacedaemonius and Porfido Verde Antico, a type of green porphyry quarried in Greece. Spartan basalt is a form of andesite or volcanic rock known today only from a single source in the village of Krokees on the Peloponnese in Greece. In addition, ancient sources mention a quarry of Lapis Lacedaemonius in Taygetus.
