It is widely used for architectural construction, ornamental stone and monuments. PUMICE: An igneous-volcanic rock, it is a porous, brittle variety of rhyolite and is light enough to float. It is formed when magma of granite composition erupts at the earths surface or intrudes the crust at shallow depths.
Sponsored Topics. Parma is a city in Canyon County, Idaho, United States. The population was 1,771 at the 2000 census. It is part of the Boise CityâNampa, Idaho Metropolitan Statistical Area. Parma is located at 43Â°47â²10â³N 116Â°56â²34â³W / 43.78611Â°N 116.94278Â°W / 43.78611; -116.94278 (43.786009, -116.942656).
Parma, Idaho. Homefacts City Report. Parma is located in Canyon County, ID. The population is 2,119, making Parma the 4th largest city in Canyon County. There are 3 public schools in Parma with an average Homefacts rating of B. The total crime rate for Parma is low, and there are 29 registered sex offenders residing in the city.