INTERESTING FACTS
During World War II (1942) Oscar statuettes were made of plaster.
After the war ended, all owners of plaster awards were able to replace them with regular
metal ones with gilding

HISTORICAL FACTS
The first mention of plaster by Theophrastus 300-325. Origin of the name - From
Greek γυψοζ meaning chalk or plaster

INTERESTING FACTS
Pyrite was also confused with gold during the Alaskan Gold Rush. It is described in the works of Jack London. It is not by chance that in English-speaking countries, pyrite is called fool's gold.

HISTORICAL FACTS
Pyrite was man's first match. The pre-Columbian American cultures and the peoples of the ancient world found practical applications for the metallic luster of pyrite, using it to make mirrors

INTERESTING FACTS
Used in optical devices, telephone and radio equipment, glass and ceramic industry

HISTORICAL FACTS
Quartz was first discovered in the Alps by miners in the Ore Mountains. They found a pure crystal. crystal, they thought it was a form of frozen water and called it "crystal", from the Greek word for ice

INTERESTING FACTS
The Incas believed that rhodochrosite was a crystal formed from frozen drops of blood of ancient rulers. In Mongolia, this stone is mined in its pure pink form and is called the "stone of love"

HISTORICAL FACTS
The story begins in the 13th century in the mines of America, where rhodochrosite was found. It was extremely popular among Indian tribes. At that time, it was already being used to make jewelry and various crafts

INTERESTING FACTS
Antimonite or Antimony is slang for "vomit stone. Antimony enters the body with food and selectively concentrates in the thyroid gland, liver, spleen, kidneys, blood (in red blood cells), and other human soft tissues and organs. Antimony is slowly eliminated from the body


HISTORICAL FACTS
Antimony oxide (III) was used in ancient Greece to treat skin diseases, and in the Middle Ages it was used to treat leprosy, syphilis, and heart disease

INTERESTING FACTS
The name comes from the German. Wolf Rahm ("wolf cream," "wolf cream"), and is due to the fact that tungsten, accompanying tin ores as part of wolframite, interfered with the smelting of tin, translating it into a foam of slag ("devours tin like a wolf sheep")


HISTORICAL FACTS
Wolframite is described in Latin in the 1546 edition of De Natura Fossilium as Lupi Spuma. In 1781 the Swedish chemist C. Scheele discovered a new element (without isolating it in its pure form) in a mineral then called tungsten. The same element (W - tungsten), but already in the form of metal, was isolated in 1783 by Spanish chemists d'Eluyar brothers from wolframite

INTERESTING INFORMATION
In ancient times, hematite was believed to give strength and invulnerability in battle, help maintain potency and optimism, courage and will, it served as a magical amulet for men, especially for warriors

HISTORICAL FACTS
Throughout history, many cultures have used hematite powder as a dye. In ancient Egypt, earthy hematite was used in painting

INTERESTING INFORMATION
Along with pyrolusite are part of the sedimentary manganese ores, which are the main raw materials for melting ferromanganese, which is used in quality metallurgy

HISTORICAL FACTS
It is first noted in 1937 by A.G.Betekhtin under the name "hydrate of manganese dioxide" in cracks of oxidizing bustamite-rodonitic rock at Kusimovskoye Mn- field, South Urals. In 1940, he proposed the name "vernadite" for the mineral