哥倫比亞祖母綠(綠柱石的綠色品種) 半透明寶石原石 - 83.50 克拉。 - 高度: 35 mm - 闊度: 28 mm- 16.7 g
編號 83089801
哥倫比亞石,一種來自哥倫比亞的稀有偽玻璃隕石 - 高度: 35 mm - 闊度: 29 mm - 23 g
編號 83089801
哥倫比亞石,一種來自哥倫比亞的稀有偽玻璃隕石 - 高度: 35 mm - 闊度: 29 mm - 23 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./
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