(Source: mskmrn)
Tracks
Spotted this tonight.
Lightning Ridge Black Opal - Twin Galaxy Gem Stones
Aside from Grey and White, Black Opal is the most precious and is at least 50 times more rare than diamond, yet these beautiful gems are also much more fragile than diamond.
The brilliant colors within the gems are iridescent, meaning that they will change color or flash as you rotate them. Deep down within the opal are silica spheres arranged in arrays and both the size and organized arrangement of the spheres will determine the color produced. The Twin Galaxy Stones will flash like lightning as you rotate them, hence the name Lightning Ridge in Australia.
(Source: the-science-llama)
December 14th 1812: Napoleon’s invasion of Russia ends
On this day in 1812, Napoleon’s Grand Armée was expelled from Russia when the last French troops left, thus ending the French invasion of Russia. France’s failure was a decisive turning point in the Napoleonic Wars, and turned the tide of the war against the French and in favour of the coalition against them. Napoleon had begun the invasion in June 1812, but by the end his army of around 685,000 was down to 120,000. This was partly because his tactic of getting resources by ‘living off the land’ was thwarted by the harsh Russian winter and the Russian scorched earth tactic.
(Source: ForGIFs.com)
