the mineral Galena?

Question

does anyone know the texture,3 practical uses in our every day life and special properties of Galena?please help me ny report is do Wensday!!!!!!

Answer 1

Galena has has a smooth crystline texture as seen in the photo here. http://www.mii.org/Minerals/photolead.html

Pratical uses of Galena in everyday life would be in the form of lead where it is used in batteries, gasoline tanks, solders, seals or bearings, electrical and electronic applications, TV tubes, TV glass, construction, communications, and protective coatings, in ballast or weights, ceramics or crystal glass, tubes or containers, type metal, foil or wire, X-ray and gamma radiation shielding, soundproofing material in construction industry, and ammunition. http://www.mii.org/Minerals/photolead.html

Answer 2

Uses Of Galena

Answer 3

Galena Uses

Answer 4

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RE:
the mineral Galena?
does anyone know the texture,3 practical uses in our every day life and special properties of Galena?please help me ny report is do Wensday!!!!!!

Answer 5

One of the earliest uses of galena was as kohl, which in Ancient Egypt, was applied around the eyes to reduce the glare of the desert sun and to repel flies, which were a potential source of disease.[1]

Galena is a semiconductor with a small bandgap of about 0.4 eV which found use in early wireless communication systems. For example, it was used as the crystal in crystal radio sets, in which it was used as a point-contact diode to detect the radio signals. The galena crystal was used with a safety pin or similar sharp wire, and was known as a "cat's whisker". Scientists that were linked to this application are Karl Ferdinand Braun and Sir Jagdish Bose. In modern wireless communication systems, galena detectors have been replaced by more reliable semiconductor devices, however, silicon point-contact microwave detectors still exist in the market

Answer 6

GALENA IS LEAD ORE AND THERE IS A TOWN IN ILLINOIS NAMED GALENA AND U.S. GRANT WAS BORN AND LIVED THERE FOR MUCH OF HIS LIFE.

Answer 7

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