Galena is a naturally occurring lead ore, it was never invented.
The cube shape occurs naturally in nature (eg a crystal of Galena is cubic) thus the shape was not invented by anybody.
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
The first diode was the Galena Cats Whisker. It was invented shortly after the development of radio, but I'm not sure by who.Fleming's vacuum tube diode came shortly afterwards.
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 Historic Foundation is: 109 Harrison Street Room 13, Galena, OH 43021
The address of the Galena Mining And Historical Museum is: Po Box 372, Galena, KS 66739