The six minerals olivine, quartz, feldspar, mica, pyroxene and amphibole are the commonest rock-forming minerals and are used as important tools in classifying rocks, particularly igneous rocks. Except for quartz, all the minerals listed are actually mineral groups.lagioclase. Feldspar: Feldspar is the other common, light-coloured rock-forming mineral. Instead of being glassy like quartz, it is generally dull to opaque with a porcelain-like appearance. Colour varies from red, pink, and white (orthoclase) to green, grey and white (plagioclase).
Ice Cube's look-alike son O'Shea Jackson Jr. on playing dad in 'Straight Outta Compton'. Like father, like son! Ice Cubeâs 24-year-old son OâShea Jackson, Jr. is his fatherâs double. The 24-year-old actor is portraying the teenage version of his father in the N.W.A biopic, Straight Outta Compton which hit theaters on August 15.
Solving the 5,000-Year-Old Murder of Otzi the Iceman By Garry Rodgers In 1991, the mummified body of a 5,000-year-old murder victim was discovered in melting ice at a rock-gully crime scene high in the Italian Otzal Alps. Nicknamed Otzi, the estimated 45-year-old man and his possessions were incredibly well preserved.