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'The Stone Flower' (1946) dir. Aleksandr Ptushko.

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2019-08-19

One of the most amazing minerals is silica (SiO2). It forms beautiful 6 sided quartz crystals when it grows freely & slowly, it infills empty gas bubbles in ancient lava flows in a fine grained (cryptocrystalline) form. Beautiful this humble silica isn’t it?

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2019-08-12


Charoite, anastomosing around feldspars, in a schist from Yakutia

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2018-11-05

This is Blue John, a type of fluorite that was popular in the 18th and 19th Century for ornamental furniture

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2018-11-04

"Saddle" (Cortina d’Ampezzo, Italy) for
This rock formed in the Triassic period, about 238 million years ago. Width 3,8 mm

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2018-02-19