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The following is a list of rock types recognized by geologists. There is no agreed number of specific types of rock. There is no agreed number of specific types of rock. Any unique combination of chemical composition, mineralogy, grain size, texture, or other distinguishing characteristics can describe a rock type.
Jasper, an aggregate of microgranular quartz and/or cryptocrystalline chalcedony and other mineral phases, [1] [2] is an opaque, [3] impure variety of silica, usually red, yellow, brown or green in color; and rarely blue.
This is a list of minerals which have Wikipedia articles. ... (metamorphic rock - zoisite, ruby, and hornblende) ... (greenish-yellow variety of beryl) Heliotrope ...
The yellow-bellied marmot (Marmota flaviventer), also known as the rock chuck, is a large, stout-bodied ground squirrel in the marmot genus. [2] It is one of fourteen species of marmots, and is native to mountainous and semi-arid regions of southwestern Canada and western United States, including the Rocky Mountains, Sierra Nevada, and the Great Basin, often (but not exclusively) living above ...
In 1965, California became the first state to name an official state rock. A 2010 effort led by State Senator Gloria J. Romero , a Democrat from Los Angeles , sought to remove serpentine from its perch as the state's official stone.
Peridot (/ ˈ p ɛ r ɪ ˌ d ɒ t,-ˌ d oʊ / PERR-ih-dot, -doh), sometimes called chrysolite, is a yellow-green transparent variety of olivine.Peridot is one of the few gemstones that occur in only one color.
Yellow Rock, Kentucky, United States Topics referred to by the same term This disambiguation page lists articles about distinct geographical locations with the same name.
The Three Sisters are an unusual rock formation in the Blue Mountains of New South Wales, Australia, on the north escarpment of the Jamison Valley. They are located close to the town of Katoomba and are one of the Blue Mountains' best known sites, towering above the Jamison Valley. [1] Their names are Meehni (922 m), Wimlah (918 m), and ...