Fluorite - Calcite
Abstract
Description
CaF2 and CaCO3 - Mohs Hardness: 4 and 3. Illinois, USA is perhaps best known for world-class fluorites from the Minerva Mine, Denton Mine, and others throughout Hardin County and beyond. Besides colorful fluorites, many other minerals like celestine, galena, sphalerite calcite, and witherite have also been discovered there.
item.page.type
natural object
StillImage
StillImage
item.page.format
image/jpeg
Keywords
environmental sciences