| ARFVEDSONITES | • arfvedsonites n. Plural of arfvedsonite. • ARFVEDSONITE n. (Swedish) an iron-rich sodium amphibole. |
| BABINGTONITES | • BABINGTONITE n. a triclinic basic silicate of iron and calcium, occurring as glassy greenish-black crystals. |
| BISMUTHINITES | • bismuthinites n. Plural of bismuthinite. • BISMUTHINITE n. a grey mineral consisting of bismuth sulphide in orthorhombic crystalline form. |
| CUMMINGTONITE | • cummingtonite n. (Mineralogy) A mineral, magnesium-iron silicate hydroxide, (Mg,Fe)7Si8O22(OH)2. • CUMMINGTONITE n. a mineral of the amphibole group, hydrated magnesium iron silicate. |
| HYPERSTHENITE | • hypersthenite n. (Mineralogy) A more or less coarsely crystalline igneous rock, allied to gabbro; an aggregate of labradorite… • HYPERSTHENITE n. a pyroxenite composed almost wholly of hypersthene. |
| IMPENITENCIES | • impenitencies n. Plural of impenitency. • IMPENITENCY n. the state of being impenitent, also IMPENITENCE. |
| INFINITESIMAL | • infinitesimal adj. Incalculably, exceedingly, or immeasurably minute; vanishingly small. • infinitesimal adj. (Mathematics) Of or pertaining to values that approach zero as a limit. • infinitesimal adj. (Informal) Very small. |
| LUXULLIANITES | • luxullianites n. Plural of luxullianite. • LUXULLIANITE n. a tourmaline granite found at Luxulyan in Cornwall, also LUXULIANITE, LUXULYANITE. |
| MICROGRANITES | • microgranites n. Plural of microgranite. • MICROGRANITE n. a minutely crystalline variety of granite. |
| ORNITHICHNITE | • ornithichnite n. (Paleontology) A fossilised footprint left by a bird. • ORNITHICHNITE n. a fossil footprint of a bird. |
| PENITENTIALLY | • penitentially adv. In a penitential manner. • PENITENTIAL adv. relating to penitence. |
| PORCELLANITES | • porcellanites n. Plural of porcellanite. • PORCELLANITE n. a jasper-like shale highly indurated by contact metamorphism. |
| SERPENTINITES | • serpentinites n. Plural of serpentinite. • SERPENTINITE n. a metamorphic rock that consists largely of the mineral serpentine. |
| STRONTIANITES | • strontianites n. Plural of strontianite. • STRONTIANITE n. strontium ore. |
| WOLLASTONITES | • wollastonites n. Plural of wollastonite. • WOLLASTONITE n. a metasilicate of calcium, usually occurring in white to grey fibrous tabular masses and used as a source of rock wool. |