Smeraldo verde colombiano naturale, non trasformato Pietre preziose 31,7 ct- 6.34 g
N. 83088645
Colombianite, una rara pseudo-tectite proveniente dalla Colombia - Altezza: 32 mm - Larghezza: 26 mm - 25.4 g
N. 83088645
Colombianite, una rara pseudo-tectite proveniente dalla Colombia - Altezza: 32 mm - Larghezza: 26 mm - 25.4 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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