Actinolite is a bright to gray-green member of the amphibole mineral family. In addition to silica, it contains calcium, magnesium, and iron. Actinolite is a non-hazardous relative of asbestos and is a common mineral in metamorphic rocks.[1]
References
- ↑ http://wrgis.wr.usgs.gov/docs/parks/misc/glossarya.html