296-340 Rock and Mineral Resources: Lab Outline Steven Dutch,
Natural and Applied Sciences, University of Wisconsin - Green
Bay First-time Visitors: Please visit Site Map and Disclaimer.
Use "Back" to return here. - Potassium Feldspar - Plagioclase
Feldspar - Biotite Mica - Muscovite Mica Identifying Minerals in
Rocks - Identifying an Unknown Mineral - Crystal Form - Geologic
Setting - A Useful Strategy - If you see hoof prints, think
horses, not zebras. Finding a rare mineral is exciting, but
always suspect the most common minerals first. - Will it Scratch
Glass? If so, probably a silicate, next most likely an - Is it
metallic in luster? Probably a sulfide. Sulfur smell confirms
it. If not a sulfide, most likely an oxide, might be a metallic
element. - Does it have good cleavage? If soft, most likely a
carbonate. Carbonates fizz in acid. Could also be a sulfate - Is
it brightly colored? Blue or green suggests copper. Other
brightly-colored minerals are easy to learn. Identifying and
Describing Rocks Importan