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ETYMOLOGY: It comes from the Latin alumen, auminis, (SALT)
CRISTAL SYSTEM: Hexagonal.
MINERAL CLASS: Sulfates
CHEMICAL FORMULA, MINERAL ELEMENTS: KAl(SO4)2•12H2O
HARDENESS: 3.5 to 4 on the Mohs scale.
DEPOSITS: Spain, Mexico.
MINEROLAGY: It is generally formed by solutions of sulfuric acid that act on rocks rich in feldspar, in some places have formed large masses of this mineral. It is found in small quantities near volcanic craters.
MYTHOLOGY AND TRIVIA: Pliny the writer and Roman naturalist, was the first to document the use of Aumen Romanum; in his book "Naturalis Historia". The Greek Dioscorides also describes alum mineral in his extensive work "De Materia Médica" . In 1445 the mines of Bizanzio fell into the hands of the Turks, the alum became expensive, reason for which they began to look for deposits in Europe.
PROPERTIES: It is said that stone cleans the home and its inhabitants of bad energies, fights insomnia, dissipates nightmares, is excellent for memory (exercise). Minerals white favor clarity and purity, spiritually represent a creative force, possessing all possibilities and can materialize all things, brings fullness and perfection.
ZODIAC SIGN: It is related to all the signs of the zodiac
USES: In the cleaning of the clothes, to give to the colors more brightness and more vivacity, also serves to obtain almost all the lacquers; to preserve the skins and linings from being attacked by insects; to light the writing paper, to harden the tallow in the making of candles; to retard the decay of corpses; In cosmetics is used & nbsp; as natural deodorant and antiperspirant. When moistened and applied on the skin, leaves a layer of minerals with bactericidal effect, thus eliminating the smell of the armpits, such as excessive sweating. It can also be applied to the feet as deodorant and after shaving.