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LOT 2350
Very Large Cut Natural Unpolished Fossilised Tree Trunk Slice
TRIASSIC PERIOD, 251-199 MILLION YEARS B.P.
12 1/8 in. (1.54 kg, 30.9 cm).
Thick section of agatised wood showing some bark detailing on the outside. [No Reserve]
ProvenanceFrom Madagascar.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2350
Very Large Cut Natural Unpolished Fossilised Tree Trunk Slice
Estimate £40 - 60€46 - 70 (for guidance only)$54 - 81 (for guidance only)
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Polished Fossil Orthoceras Specimen Collection
Devonian Period, circa 417-354 million years B.P.Estimate: £20 - 30 (+bp*)
Bids: 1 | Current Bid: £5
Comprising four polished specimens. 126 grams total, 47-83 mm
From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. -
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Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens
Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Comprising forty-two calcite rhombs displaying characteristic double refraction. 1.54 kg total, 24-42 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
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Group of Twenty [20] Large Rock Crystal Point Display Specimens
Estimate: £30 - 40 (+bp*)
Bids: 1 | Current Bid: £5
Comprising twenty prismatic points, some twinned or with parallel growth. 1.57 kg total, 4.7-10.7 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
