Sky Glass is the TV and broadband giant's own foray into the TVs market with a set that offers the features you'd expect – a 4K screen, HDR and smart apps, but it's also got a trick up its sleeve.

Minerals found in micaceous lenses in Snezhnoe include various types of mica (fuchsite and phlogopite), plagioclase (from albite to anorthite), and scapolite (40–60% meionite), as well as ruby and ...

The concentration of K is about 0.1 wt % for SK, HP, and AH. KS has twice the amount, and HaBKs has 10 times less than KS. In the case of Na, the content is similar, except for KS with the highest ...

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