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![Group of Thirty Three [33] Boxed Mexican Calcite and Other Crystal Specimens](https://timelineauctions.com/upload/images/items/small/251102-s.jpg)
Group of Thirty Three [33] Boxed Mexican Calcite and Other Crystal Specimens
Estimate: £40 - 60 (+bp*)
Opening Bid: £5
Boxed group comprising orange and pink calcite from Mexico, fluorite, white to colourless calcite from Mexico, and quartz. 1.62 kg total including box, 21-75 mm
From Mexico. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Mounted Amethyst Crystal Display
Estimate: £800 - 1,000 (+bp*)
Bids: 1 | Current Bid: £792
A polished geode section lined with large well-formed prismatic amethyst crystals displaying deep purple colour; mounted on a custom-made wooden display stand. 2.95 kg total, 23.5 cm including stand
From Artigas, Uruguay. Property of a London lady. -
Rose Quartz Mineral Chip Group
Estimate: £10 - 20 (+bp*)
Opening Bid: £5
A large quantity of pink-coloured chips in various sizes. 1 kg total, 1-33 mm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Polished Amethyst Crystal Display with Calcite
Estimate: £1,500 - 2,000 (+bp*)
Opening Bid: £825
A free-standing polished geode section lined with dark purple amethyst crystals, calcite with small black crystals to one side. 12 kg, 35.5 cm
From Artigas, Uruguay. Property of a London lady. -
![Mixed Cut and Polished Agate Half Geode Group [10]](https://timelineauctions.com/upload/images/items/small/250978-s(1).jpg)
Mixed Cut and Polished Agate Half Geode Group [10]
Estimate: £30 - 40 (+bp*)
Bids: 1 | Current Bid: £5
Comprising ten cut geode halves showing crystalline centres. 1.66 kg total, 4.7-10.7 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Massive Cut and Polished 'Septarian Egg' Half
Estimate: £80 - 100 (+bp*)
Opening Bid: £5
The attractive internal structure filled with yellow calcite, brown aragonite, and grey limestone. 3.96 kg, 21.5 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Polished Madagascan Fossil Cleoniceras Ammonite
Jurassic Period, circa 199-145 million years B.P.Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Polished specimen showing attractive pattern formation. 135 grams, 84 mm
From a Cambridgeshire, UK, collection. -
Mosasaur 'Marine Dinosaur' Fossil Jaw Fragment
Cretaceous Period, circa 145-65 million years B.P.Estimate: £60 - 80 (+bp*)
Bids: 8 | Current Bid: £125
A composite jaw fragment set with five teeth. 229 grams, 17 cm
From Morocco, North Africa. From a Cambridgeshire, UK, collection.
The Mosasaur is an extinct, large marine reptile dinosaur with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish. -
![Set of Three [3] Cut and Polished Eye Agate Geode Slices](https://timelineauctions.com/upload/images/items/small/251119-s.jpg)
Set of Three [3] Cut and Polished 'Eye' Agate Geode Slices
Estimate: £20 - 30 (+bp*)
Bids: 1 | Current Bid: £5
Comprising three transparent slices from the same geode showing an eye-like pattern. 155 grams total, 13.5-14 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
![Group of Three [3] Kalahari Desert Wind Stones in Gift Bags](https://timelineauctions.com/upload/images/items/small/251111-s.jpg)
Group of Three [3] Kalahari Desert Wind Stones in Gift Bags
Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Comprising three wind-rounded pebbles in hollowed out 'nests'; each with a hessian draw-ribbon pouch. 428 grams total, 51-69 mm
From the Kalahari Desert. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Brittlestar Fossil on Matrix
Middle Ordovician Period, circa 450 million years B.P.Estimate: £40 - 60 (+bp*)
Bids: 4 | Current Bid: £35
Ophiuroidea sp. on an irregular matrix. 388 grams, 13.5 cm
From a Cambridgeshire, UK, collection. -
Otodus Fossil Shark's Tooth Necklace
Eocene Period, circa 53-33 million years B.P.Estimate: £20 - 30 (+bp*)
Bids: 4 | Current Bid: £25
An Otodus obliquus tooth made into a pendant and suspended from a cord necklace. 6.07 grams, tooth: 34 mm
From a Cambridgeshire, UK, collection.
