Galena was known to ancients, so its discovery and discoverer remain uncertain. The ancient Egyptians used it around their eyes to cut glare, and it was know to them as kohl. A link can be found below to learn more about this sulfide mineral, which is the most important ore of lead.
Galena is listed at 2.5 on the Mohs scale of mineral hardness.
Galena is in the sulfide group of minerals.
Galena has a hardness of 2.5 on the Mohs scale. It has a specific gravity of about 7.4. to 7.6. Galena is main mineral in which lead is found.
Cleavage of galena is the tendency of the mineral to break along planes of weakness, resulting in smooth, flat surfaces. Galena exhibits perfect cleavage in three directions at right angles to each other, producing cubic or octahedral shapes. This property is a result of the crystal structure of galena.
the hardness of galena on the Mohs scale is 2.5
Galena
Galena - the ore of lead has been known form ancient times therfore the person who first discovered/identified it is unknown.
The address of the Galena Public Library is: 315 W. 7Th Street, Galena, 66739 1211
Galena is steel grey.
The address of the Galena Archival Library is: 204 W. 7Th Street, Galena, 66739 1211
Galena is a mineral.
Galena's cleavage is cubic.
Galena not a rock its a Economic mineral of lead. Formula of Galena is PbS. Galena and Sphalerite(ZnS) Found togather at Hydrothemal deposits.
The address of the Galena Area Library is: 322 W State Highway 248, Galena, 65656 8502
Galena's fracture is subconchoidal, and its cleavage is cubic. See http://www.minerals.net/mineral/sulfides/galena/galena.htm for a complete chart about galena's properties.
The address of the Galena Mining And Historical Museum is: Po Box 372, Galena, KS 66739
The address of the Galena Public Library District is: 601 South Bench Street, Galena, 61036 2322