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Natural history There are 27 products.
Epidote
Good example of Epidote, with dark green crystals.Price: € 100,--Size: 9,5 x 6,3 cm Weight: 104 gr. Origin: Zagros Mountains, Iran Provenance: St. Marie aux Mines coll., ex. University collection Amsterdam
Rock crystal cluster
Nice cluster of clear rock crystals, with some pyrite.Price: € 200,--Size: 11 x 9,8 cm Weight: 486 gr. Origin: Peru, Cerro de Pasco Provenance: Coll. Lima 1978, Ex. coll. University Amsterdam
Large plate with Crinoid
Plate of Silurian aged, Scyphocrinites elegans crinoids from Boutschrafin, Erfoud, Morocco. There is one very large, detailed crown.Price: € 300,--Size: 28 x 18 cm Period: Upper Silurian, c. 420 Million years Origin: Erfoud, Morocco
Double fish fossil
Fish fossil on two sides of the stone. Nice detailsPrice: € 75,--Size: 11 x 7 cm
Large Ammonite
Very large Ammonite, very well preserved. Upper Jurassic Ammonite from Dorset, UKPrice: € 550,--Size: 30 x 32 cm Period: Upper Jurassic Provenance: 1990's Art Ancient UK
Crocoite
Fine example of Crocoite with deep orange-red color. PbCrO4Price: SOLDSize: 8,5 x 6,5 x 5 cm Origin: Zeehan Dundas Adelaide mine Tasmania, Australia Provenance: early 70's collection DW Belgium
Epidote with mountain crystal
Good example of Epidote. This piece has a marriage with rock crystal Ca2(Fe3+,AI) AI2(SiO4)(Si2O7)O(OH)Price: SOLDSize: 8,5 x 5,5 x 4 cm Origin: Imilchil mine, Errachidia Marocco Provenance: Hicham, Collection DW Belgium
Fluorite on quartz
Fine example of Fluorite on Quartz. CaF2 and SiO2Price: € 170--Size: 8 x 10 x 7,5 cm Origin: Maiwang mines Xianguapu, Hunan, China Provenance: collected 1960's by father of DW Belgium
Barite
Barite cluster, with good sized crystals. BaSO4Price: € 52,50Size: 4,6 x 3,5 x 3 cm Origin: Frizington Mowbray mine (Mindat locality 1458) England Provenance: collected 1960's by father of DW Belgium
Selenite /Gypsum
Light green Selenite, fine crystals. CaSO4 .2 H2OPrice: € 160Size: 4 x 6 x 15.3 cm OrIgin: Pernatty Lagoon, South Australia Provenance: By inheritance, Bertie en Dos Winkel collection Belgium 1960/2024
Azurite on Malachite
Azurite on Malachite,, very deep blue color. Cu3(CO3)2(OH)2Price: € 350,--Size: 9.5 x 7.5 x 3 cm Origin: Sidi Boubeker, Marocco Provenance: Bertie en Dos Winkel collection Belgium
Malachite plaque
A nice plaque of Malachite. Cu2(CO3)(OH)2Price: € 175,--Size: 8.3 x 12.3 x 0.8 cm Origin: DR Congo Provenance: LucMinerals, Bertie en Dos Winkel collection