Loading, please wait...
LOT 2399
Large Amethyst and Quartz Crystal Display
CIRCA 120-140 MILLION YEARS B.P.
14 3/4 x 9 3/4 x 6 5/8 in, 20 1/2 in. (14.75 kg, 37.5 x 25 x 17 cm, 52 cm including stand).
An ovoid geode section with large prismatic quartz and light purple amethyst crystals with colour concentrations at the peak of the terminations; mounted on a custom-made display stand.
ProvenanceFrom Artigas, Uruguay.
Property of a London lady.
TimeLine 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:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
LOT 2399
Large Amethyst and Quartz Crystal Display
Estimate £2,000 - 3,000€2,320 - 3,480 (for guidance only)$2,700 - 4,050 (for guidance only)
Opening Bid
£11,100 (EUR 12,876; USD 14,985) +BP*
-
Fossil Knightia Fish Plate
Eocene Period, circa 58-36 million years B.P.Estimate: £30 - 40 (+bp*)
Opening Bid: £5
A Knightia alta fish on a rectangular limestone matrix. 929 grams, 17.5 x 12.5 cm
From Wyoming, USA. From the private collection of a Devon, UK, lady.
In southwest Wyoming (and parts of Colorado and Utah), in the Green River Formation, are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Uinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time. -
Fossil Cornuproetus Fossil Trilobite on Matrix
Devonian Period, circa 390-360 million years B.P.Estimate: £40 - 60 (+bp*)
Opening Bid: £5
Showing two elongated genals protruding from its cephalon. 141 grams, 72 mm
From a Norfolk, UK, collection. -
![Group of Twenty [20] Large Rock Crystal Point Display Specimens](https://timelineauctions.com/upload/images/items/small/256047-s.jpg)
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.
