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LOT 2809
Natural History - Polished Fossil Goniatite Group
DEVONIAN PERIOD, CIRCA 417-354 MILLION YEARS B.P.
5 1/2 in. (858 grams total, 13.9 cm).
Comprising two polished, dome-shaped masses, each with a central Goniatite sp. specimen. [2, No Reserve]
ProvenanceFrom the Atlas Mountains of Morocco, North Africa.
From a Cambridgeshire, UK, collection.
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AUCTIONS:
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Natural History - Large Cut Petrified Fossil Tree Trunk Slice
Triassic Period, 251-199 million years B.P.Sold for (Inc. bp): £78
Showing bark detail on the edges, the cut faces showing attractive agatized patterns. 1.41 kg, 26 cm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Historic 'Missouri Calcite Mineral Specimen
Sold for (Inc. bp): £39
With creamy yellowish white, ash and blue grey crystals, collection number 107. 422 grams, 90 mm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Accompanied by an original historic index file card. -
Natural History - Large Historic 'Brazil' Citrine Crystal Specimen
Sold for (Inc. bp): £72
A cut section displaying toffee-orange brown, white, and light brown colours, collection number 342. 1.03 kg, 15.5 cm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Accompanied by an original historic index file card.
Citrine is also known as 'burnt amethyst', the orange colour is due to ferric iron.