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LOT 2638
Western Australian Polished Jerrinah Formation Stromatolite Section
PROTEROZOIC PERIOD, 2.69-2.63 BILLION YEARS B.P.
5 1/2 in. (133 grams, 14 cm).
Irregular section with polished upper face displaying layered fossilised microbial mats in grey, brown and cream colours. [No Reserve]
ProvenanceFrom Pillbara, Western Australia.
From the private collection of a Leicestershire, UK, gentleman.
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AUCTIONS:
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LOT 2638
Western Australian Polished Jerrinah Formation Stromatolite Section
Sold for (Inc. bp): £104
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Lazurite Mineral Display Specimen
Sold for (Inc. bp): £46
Dark blue lazurite on matrix. 129 grams, 74 mm
Property of a North West London, UK, lady. -
Morton Gneiss Plate Sections
Circa 3.5 billion years B.P.Sold for (Inc. bp): £286
Comprising four rectangular sections of grey pink and black medium to coarse-grained biotite-quartz-plagioclase gneiss with polished upper face, each with wooden backing and one cracked. 233.7 kg total, 85 x 57.7 - 85 x 58 cm
Canadian Shield, Minnesota River Valley, Southwestern Minnesota, USA. with Phillips, New York, 3 June 1995, no.81. Private collection, Florida, acquired at the above sale. with Sotheby’s, New York, 28 April 2021, no.27 (est. $2,500–3,500).
The world’s oldest known rocks come from the Canadian Shield area of North America. Among the most ancient is the present material, Morton Gneiss at approximately 3.5 billion years old believed to be part of Earth’s first planetary crust. The swirls and layers are a result of metamorphism that incurred when the original volcanic rock was buried to tremendous depths. -
Tourmaline Crystal Mineral Display Specimen
Sold for (Inc. bp): £247
A large trigonal tourmaline crystal in dark pink colour. 121 grams, 86 mm
Property of a North West London, UK, lady.
