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![Group of Fifty [50] Amethyst Crystal Sections](https://timelineauctions.com/zoom_images/zoomthumb/2/5/255959_900x900.jpg "Group of Fifty [50] Amethyst Crystal Sections")
![Group of Fifty [50] Amethyst Crystal Sections](https://timelineauctions.com/zoom_images/zoommap/2/5/255959_200x200.jpg "Group of Fifty [50] Amethyst Crystal Sections")
![Group of Fifty [50] Amethyst Crystal Sections](https://timelineauctions.com/upload/images/items/255959.jpg "Group of Fifty [50] Amethyst Crystal Sections")
LOT 2351
Group of Fifty [50] Amethyst Crystal Sections
7/8 - 2 3/8 in. (2.84 kg total, 23-60 mm).
Comprising fifty irregular geode sections with small prismatic amethyst crystals. [50, No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2351
Group of Fifty [50] Amethyst Crystal Sections
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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Fossil Thysanopeltidae Trilobite in Matrix
Middle Devonian Period, circa 380 million years B.P.Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Thysanopeltidae scutellum on a textured matrix, showing detail of the characteristic fan-like tail shield. 386 grams, 99 mm
From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. -
Fossil Sapindopsis Plant Leaf
Cretaceous Period, circa 145-66 million years B.P.Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Comprising three joined leaves from an extinct genus Sapindopsis, related to the modern Platanaceae family. 1.08 kg, 20.5 cm
From Lebanon. From a Cambridgeshire, UK, collection. -
![Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens](https://timelineauctions.com/upload/images/items/small/255972-s.jpg)
Large Group of Forty-Two [42] Cleaved Optical Calcite Specimens
Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Comprising forty-two calcite rhombs displaying characteristic double refraction. 1.54 kg total, 24-42 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
