I` m a human being

петък :)

добруджанска носия и нещо зелено

0o 
тва е велико! 

(Source: youtube.com, via geocrusader80)

amass-musing:

“The Naica Mine of Chihuahua, Mexico, is a working mine that is known for its extraordinary crystals. Naica is a lead, zinc and silver mine in which large voids have been found, containing crystals of selenite (gypsum) as large as 4 feet in diameter and 50 feet long.  Naica lies on an ancient fault and there is an underground magma chamber below the cave. The magma heated the ground water and it became saturated with minerals, including large quantities of gypsum. The hollow space of the cave was filled with this mineral rich hot water and remained filled for about 500,000 years. During this time, the temperature of the water remained very stable at over 50°C. This allowed crystals to form and grow to immense sizes. In fact, the temperature is a sweltering 112F, with a humidity of 90-100 per cent. This is why cavers wear protective suits and carry backpacks of ice-cooled air.”