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![Group of Thirteen [13] Pink Dolomite Crystal Specimens](https://timelineauctions.com/zoom_images/zoomthumb/2/5/255973_900x900.jpg "Group of Thirteen [13] Pink Dolomite Crystal Specimens")
![Group of Thirteen [13] Pink Dolomite Crystal Specimens](https://timelineauctions.com/zoom_images/zoommap/2/5/255973_200x200.jpg "Group of Thirteen [13] Pink Dolomite Crystal Specimens")
![Group of Thirteen [13] Pink Dolomite Crystal Specimens](https://timelineauctions.com/upload/images/items/255973.jpg "Group of Thirteen [13] Pink Dolomite Crystal Specimens")
LOT 2448
Group of Thirteen [13] Pink Dolomite Crystal Specimens
2 3/4 - 3 3/4 in. (1.52 kg total, 68-95 mm).
Comprising thirteen sections of pale pink dolomite, some with marcasite. [13, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2448
Group of Thirteen [13] Pink Dolomite Crystal Specimens
Estimate £30 - 40€35 - 46 (for guidance only)$41 - 54 (for guidance only)
Opening Bid
£5 (EUR 6; USD 7) +BP*
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Very Large Cut Natural Unpolished Fossilised Tree Trunk Slice
Triassic Period, 251-199 million years B.P.Estimate: £40 - 60 (+bp*)
Bids: 1 | Current Bid: £5
Thick section of agatised wood showing some bark detailing on the outside. 1.54 kg, 30.9 cm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
![Large Group of One Hundred [100] Amethyst Crystal Sections](https://timelineauctions.com/upload/images/items/small/255958-s.jpg)
Large Group of One Hundred [100] Amethyst Crystal Sections
Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Comprising one hundred irregular geode sections with prismatic amethyst crystals. 1.74 kg total, 17-49 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
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Seymchan Meteorite Cross-Section
Circa 4.5 billion years B.P.Estimate: £6,000 - 8,000 (+bp*)
Opening Bid: £3,000
A magnificent polished cross-section from the Seymchan pallasite meteorite, revealing the honeycomb-like structure characteristic of pallasites, with translucent olivine crystals embedded within iron-nickel crystals; accompanied by a custom-made display stand. 356 grams, 23.2 cm
Discovered in 1967, recovered from the bed of the river Hekandue in the Magadan District, Russia (62° 54’ N, 152° 26’ E).
The main mass of 272.3 kilograms was found during a survey in June 1967 by geologist F. A. Mednikov. The mass was a triangular-shaped thumb-printed meteorite lying among the stones of the brook bed. A second specimen of 51 kilograms was found with a mine detector at a distance of 20 meters from the first in October 1967 by I. H. Markov. During a new expedition in 2004, Dmitri Kachalin recovered about 50 kilograms of new material. Remarkably, about 20% of the new specimens were found to contain olivine crystals, and so revealed the silicate nature of the meteorite. The pallasitic structure was not previously discovered during studies on small metal-only sections of the original mass. The distortion of the Widmanstatten patterns is interpreted as shearing of the superheated meteorite as it broke up in the Earth's atmosphere.
