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The largest diamond in the world was found in southern Africa. This happened on January 25, 1905 at the mine "Premier" in the Pretoria, Transvaal. Frederick Wells, the manager of the mine, noticed during the evening detour on the wall of the quarry a glitter 9 meters from the top of the quarry. From there, the workers of the mine extracted a diamond, the dimensions of which were 10 x 6,5 x 5 centimeters. It was a Cullinan diamond...

A beautiful variation of agate - onyx. If the agates of the strip have a concentric or oval shape, then onyx they are straight. Depending on the impurities, these gems have a different color and, accordingly, its names. Actually onyx...

We used to regard the minerals life as unchanged, but in fact minerals are born, live, age, collapse and are reborn as new stones. One of the first Russian mineralogists, Academician V.M. Severgin, in his book The First Foundations of Mineralogy or Natural History of Fossil Bodies...

Much of what the previous generations have discovered, we take for granted, without thinking about the essence and meaning of these things. Every day from birth, our body experiences the gravity of the Earth, only after death, freed from its shackles, the free soul moves to a parallel world where it finds eternity. Probably, there, in the parallel world, there is no gravitation...

The giant natural laboratory in which crystallization of the solution is Kara-Bogaz-Gol, the Caspian Sea bay, separated from the sea by a narrow oblique. Kara-Bogaz-Gol is shallow, its waters evaporate strongly under the sun. Therefore, the salt content here is 15-20 times greater than in the Caspian Sea itself...

If winter in frosty weather suddenly open the window to the street from the damp and very hot heated room, then in those places where cold air rushes, snow begins to fall. And the reason for this is that there is a crystallization from the vapors of ice that has accumulated in the room. Therefore, in severe frost, "steam comes from the mouth"...