Esmeralda sobre albita - Altura: 5 cm - Ancho: 3 cm- 60 g
N.º 81683307
Vendido
Puja final
€ 55
Hace 4 semanas
Colombianita, una rara pseudotectita de Colombia - Altura: 31 mm - Ancho: 19 mm - 14.2 g
Colombian pseudo-tektites are such clean that they are even suitable for faceting!
About Colombianite
Colombianite pseudo-tektites are found in the departments of Antioquia and Caldas in Colombia.
Formation
The type of rock that constitutes a Colombianite pseudo-tektite is called quartz porphyry. This type of rock is made up of large crystals of quartz embedded in a smaller quantity of feldspar. The quartz crystals give the rock a glassy appearance, and the overall composition is similar to that of granite.
/Every piece comes from my own collection./
International shipping via registered priority mail or other courier service with track & trace.
N.º 81683307
Vendido
Colombianita, una rara pseudotectita de Colombia - Altura: 31 mm - Ancho: 19 mm - 14.2 g
Colombian pseudo-tektites are such clean that they are even suitable for faceting!
About Colombianite
Colombianite pseudo-tektites are found in the departments of Antioquia and Caldas in Colombia.
Formation
The type of rock that constitutes a Colombianite pseudo-tektite is called quartz porphyry. This type of rock is made up of large crystals of quartz embedded in a smaller quantity of feldspar. The quartz crystals give the rock a glassy appearance, and the overall composition is similar to that of granite.
/Every piece comes from my own collection./
International shipping via registered priority mail or other courier service with track & trace.
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