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.
A family of woolly mammoths - including a one-year-old baby - is going on sale, offering museums the chance to exhibit a complete Ice Age family unit for the first time. The ancient animal skeletons are expected to raise up to Â£400,000 at auction in West Sussex later today.