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_900x900.jpg "Polished Fossil Goniatite Lidded Trinket Box")
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LOT 2387
Polished Fossil Goniatite Lidded Trinket Box
DEVONIAN PERIOD, CIRCA 400 MILLION YEARS B.P.
3 1/2 x 3 1/2 in. (548 grams, 91 x 91 mm).
A square box carved from fossiliferous stone, the lid set with a larger Goniatite sp. specimen. [No Reserve]
ProvenanceFrom a Cambridgeshire, UK, collection.
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
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LOT 2387
Polished Fossil Goniatite Lidded Trinket Box
Estimate £30 - 40€35 - 46 (for guidance only)$41 - 54 (for guidance only)
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Group of Twenty-Seven [27] Cut and Polished Agate Geode Specimens
Estimate: £30 - 40 (+bp*)
Bids: 1 | Current Bid: £5
Boxed group of agate geode halves, most showing attractive banding and crystal-lined interiors, one an unopened geode with a polished face. 2.48 kg total, 2.8-10.8 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Quartz Gem Tree on Amethyst Crystal Geode Section
Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Irregular geode matrix with light purple amethyst crystals; the metal branches tipped with polished quartz pebbles. 662 grams, 18 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
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Large Iridescent Placenticeras Ammonite from Alberta
Bear Paw Formation, Upper Cretaceous Period, circa 76-73 million years B.P.Estimate: £4,500 - 6,500 (+bp*)
Bids: 2 | Current Bid: £2,500
Placenticeras costatum with gem quality fossilised shell with some visible suture lines, conserved and stabilised with natural polish and acrylic lacquer, with excellent iridescence showing red, green, orange and gold colours. 952 grams, 26 cm
Found St Mary River Valley, Lethbridge Mining District, Alberta, Canada. Property of a Bristol, UK, gentleman collector. Accompanied by a certificate of authenticity, exportable under Moveable Cultural Property Permit no.7021-25-12-22-0102.
The striking iridescence of these ammonites from Alberta, Canada, termed 'ammolite', was given the status of a gemstone by CIBJO in 1981. An iridescent opal-like play of colour is shown in fine specimens, and is caused by the microstructure of aragonite, the same mineral contained in pearls and nacre. The thicker the structural layers, the more reds and greens are produced; the thinner the layers, the more blues and violets predominate. The ammonites are a group of molluscs that lived in the seas from the mid-Devonian (approximately 400 million years ago) to the end of the Cretaceous (65 million years ago). The sequence of events that famously killed off the dinosaurs also drove the ammonites to extinction.
