Rock+Gypsum-A



Chemical Rock

Nonclastic Grain size? Fine grained Gypsum rock was first used by the Egyptians to construct the massive pyramids

What minerals are found in it? Gypsum rock is a mineral composed of calcium sulfate, or calcium, sulfur and oxygen, combined with two molecules of water. it is common for gypsum to be associated with rock salt and sulfur deposits. Sedimentary gypsum is the gypsum that is mined commercially. Either white or gray Where does it form? Rock gypsum is a sedimentary rock, typically found in thick beds or layers Where is it found? The major North American mines stretching from Mexico to Utah and from Texas to New York


 * No **** fossils and is uniform **









http://207.28.104.131/moodle19/mod/resource/view.php?id=2016 http://geology.about.com/library/bl/blrockident_tables.htm http://www.daviddarling.info/encyclopedia/G/gypsum.html [|www.ehow.com/about_6571756_gypsum-rock.html]

by zach and jeff