Product no.: 5487
![]() Location: Czech Republic, Bohemia, Kladno, Zapotocky Mine Whewellite is a rare mineral from the oxalate group that crystallises in the monoclinic crystal system and is characterised by its colourlessness to yellowish-brown colouring. This unusual mineral often forms in association with organic material and is known to occur in coal deposits, sedimentary rocks and even kidney stones, indicating its possible biological origin. ![]() |
35.00 €
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Delivery weight: 95 g
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Product no.: 5638
![]() Location: USA, Utah, Uintah Co, near White River Uintahite is a black, resinous variety of asphalt that is considered an unrecognised mineral. This fascinating material is characterised by its deep black colour and characteristic resinous luster, which makes it an interesting collector's item for mineral enthusiasts. ![]() Lieu de découverte: USA, Utah, Uintah Co., près de White River L'uintahite est une variété noire et résineuse d'asphalte, considérée comme un minéral non reconnu. Ce matériau fascinant se distingue par sa couleur noire profonde et son éclat résineux caractéristique, ce qui en fait un objet de collection intéressant pour les amateurs de minéraux. |
45.00 €
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Delivery weight: 41 g
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