| ALBERTITE | • albertite n. (Mineralogy) A bituminous mineral resembling asphalt. • ALBERTITE n. a bituminous mineral resembling asphalt, found in the county of Albert, New Brunswick. |
| ARGENTITE | • argentite n. (Mineralogy) Silver sulfide, (Ag2S), a primary ore of silver, in cubic or hexoctahedral crystals. • ARGENTITE n. a native sulphide of silver, aka silver glance. |
| BIPARTITE | • bipartite adj. Having two parts. • bipartite adj. (Of an agreement or contract) Having two participants; joint. • bipartite adj. (Botany, of leaves) Divided into two at the base. |
| CARNOTITE | • carnotite n. (Mineralogy) A yellow mineral that is a potassium uranyl vanadate that is a major ore of uranium, with… • CARNOTITE n. a yellow uranium ore. |
| CELESTITE | • celestite n. Alternative form of celestine. • CELESTITE n. native strontium sulphate, so named from its occasional delicate blue color, also CELESTINE. |
| CEMENTITE | • cementite n. (Inorganic chemistry) A form of iron carbide, Fe3C, that is a component of steel. • CEMENTITE n. a compound of iron and carbon found in cast iron. |
| COBALTITE | • cobaltite n. (Mineralogy) A rare gray mineral, a mixed sulfide and arsenide of cobalt and iron with the chemical… • COBALTITE n. a mineral of a nearly silver-white color, composed of arsenic, sulphur, and cobalt, also COBALTINE. |
| ENSTATITE | • enstatite n. (Mineralogy) A form of pyroxene consisting solely of magnesium silicate. • ENSTATITE n. a mineral of the pyroxene group, a silicate of magnesia with some iron. |
| GONIATITE | • goniatite n. Any member of the extinct Goniatitida, a taxonomic order of ammonites. • GONIATITE n. one of an extinct genus of fossil cephalopods, allied to the Ammonites. |
| GRANITITE | • granitite n. Any of various types of granite containing a high percentage of biotite. • GRANITITE n. biotite granite. |
| HAEMATITE | • haematite n. (Chiefly British spelling) Alternative spelling of hematite. • hæmatite n. Alternative spelling of hematite. • HAEMATITE n. an ore of iron, also HEMATITE. |
| HELICTITE | • helictite n. A speleothem found in limestone caves that changes its axis from the vertical at one or more stages during its growth. • HELICTITE n. a distorted form of stalactite resembling a twig. |
| IMPACTITE | • impactite n. Any rock created or modified by the impact of a meteorite. • IMPACTITE n. a rock, typically glassy, produced where a meteor has collided with the earth. |
| MAGNETITE | • magnetite n. (Mineralogy) A magnetic mineral, Fe3O4, one of the primary ores of iron. It has also been called lodestone. • MAGNETITE n. magnetic iron ore, called lodestone when polar. |
| MIGMATITE | • migmatite n. (Geology) Any rock of mixed appearance, being an intimate mixture of granite and older rock, specifically… • MIGMATITE n. a type of rock containing igneous and metamorphic elements. |
| PEGMATITE | • pegmatite n. A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally… • PEGMATITE n. a coarsely crystallized rock commonly occurring in igneous intrusions, esp. dykes, and consisting mainly of feldspar and quartz. |
| PROUSTITE | • proustite n. (Mineralogy) A mineral, Ag3AsS3, often found with pyrargyrite in silver veins. • PROUSTITE n. a red silver ore, sulphide of arsenic and silver, aka ruby silver ore. |
| TROOSTITE | • troostite n. (Mineralogy) The mineral willemite. • TROOSTITE n. a reddish or greyish variety of willemite. |
| TUNGSTITE | • tungstite n. (Mineralogy) An orthorhombic hydrous tungsten oxide mineral formed by the weathering of other tungsten-containing… • TUNGSTITE n. a yellow earthy mineral, tungsten oxide. |