Scientists at McMurdo Station love collecting crystals of one type of these minerals named for Mount Erebus.
Scientists at McMurdo Station love collecting crystals of one type of these minerals named for Mount Erebus. Anders Celsius, the namesake of the temperature scale, names an unusual barium-containing member of this class of minerals. Despite not containing copper, one of these minerals is bright green; that one was named for its discovery in the Amazon river and is a type of microcline. Moon rocks have an abnormally large concentration of another type of them called anorthite. One type of these minerals makes up the continuous branch of Bowen's reaction series, and another is located at the junction of the continuous and discontinuous branches. That latter type of this mineral defines 6 on the Mohs hardness scale. For 10 points, identify these incredibly common tectosilicates that have plagioclase and orthoclase varieties
Scientists at McMurdo Station love collecting crystals of one type of these minerals named for Mount Erebus.
feldspars [accept any answer with adjectives preceding feldspar, prompt on tectosilicates, prompt on aluminosilicates, anti-prompt on specific feldspars like anorthoclase or plagioclase]