Search results for "Herbert's Rock-wallaby" - New World Encyclopedia
From New World Encyclopedia
- Shale is the most common sedimentary rock. [http://wps.prenhall.com/esm_lutgens_foundations_3/0,6540,354318-,00.html Rocks: Materials of the Lithosphere: ...4 KB (524 words) - 12:21, 27 January 2023
- Petrology is a field of geology that focuses on the study of rocks and the conditions under which they are formed. It utilizes the classical ...5 KB (724 words) - 02:53, 24 November 2022
- Gabbro is a dark, coarse-grained, intrusive igneous rock chemically equivalent to basalt because it shares a common origin, magma, with basalt ...5 KB (628 words) - 07:32, 15 April 2024
- Feldspar is the name of a group of rock-forming minerals that make up as much as 60 percent of the Earth's crust. Feldspars crystallize ...5 KB (690 words) - 01:58, 26 March 2024
- Slate is a fine-grained, homogeneous, metamorphic rock. It is derived from an original shale-type sedimentary rock composed of clay or volcanic ...5 KB (686 words) - 22:49, 29 January 2023
- Amphibole defines an important group of generally dark-colored, rock-forming silicate minerals. Some are constituents of igneous rocks, and others ...6 KB (934 words) - 17:24, 26 July 2023
- Obsidian is an igneous rock with a glassy form that is produced during the rapid cooling of volcanic lava. It is sometimes classified as a mineraloid ...7 KB (1,046 words) - 10:13, 11 March 2023
- A sedimentary rock is one of the three main rock groups, the other two being igneous and metamorphic rocks. It is formed by the consolidation ...11 KB (1,524 words) - 17:45, 25 January 2023
- Metamorphic rock is produced deep beneath the Earth's surface when a pre-existing rock type, called the protolith, is transformed under ...12 KB (1,761 words) - 16:21, 9 November 2022
- Ultramafic (or ultrabasic) rocks are dark-colored igneous and meta-igneous rocks that are rich in minerals containing magnesium and iron ("mafic ...7 KB (892 words) - 01:30, 3 May 2023
- Dolomite is the name for a mineral composed of calcium magnesium carbonate (CaMg(CO3)2) and for a sedimentary rock that has this mineral as its ...8 KB (1,190 words) - 16:38, 29 January 2024
- In chemistry, a silicate is a compound containing an anion in which one or more central silicon atoms are surrounded by electronegative ligands ...9 KB (1,269 words) - 22:04, 29 January 2023
- Pentlandite is a mineral consisting mainly of iron-nickel sulfide, in which the ratio of nickel to iron is usually close to 1:1. Its chemical ...8 KB (1,093 words) - 17:53, 26 March 2023
- Corundum is a crystalline form of aluminum oxide and a rock-forming mineral. It is naturally clear but can have different colors when impurities ...7 KB (924 words) - 03:36, 8 January 2024
- Biotite is a common phyllosilicate mineral within the mica group. Its approximate chemical formula is K(Mg, Fe)3AlSi3O10(F, OH)2. This mineral ...5 KB (694 words) - 17:56, 31 October 2023
- Beryl is a mineral with the chemical name beryllium aluminum cyclosilicate (chemical formula Be3Al2(SiO3)6). It has a vitreous (glassy) luster ...5 KB (674 words) - 17:25, 29 September 2023
- Georgius Agricola (March 24, 1494 – November 21, 1555) was a German scholar and scientist. Known as "the father of mineralogy," he ...7 KB (1,117 words) - 16:42, 21 May 2024
- Halite is the mineral form of sodium chloride, NaCl, commonly known as rock salt. Halite occurs as cubic crystals that are typically colorless ...5 KB (705 words) - 16:58, 21 January 2024
- Magnetite is a ferromagnetic mineral with the chemical formula Fe3O4and the common chemical name ferrous-ferric oxide, which indicates the mineral ...8 KB (1,145 words) - 05:09, 5 November 2022
- Talc (derived from the Persian via Arabic talq) is a mineral composed of magnesium silicate hydroxide. It is extremely soft, with a greasy feel ...8 KB (1,172 words) - 03:55, 27 February 2023
