| ALEXANDRITES | • alexandrites n. Plural of alexandrite. • ALEXANDRITE n. a gem variety of chrysoberyl which appears green in daylight and red in artificial light. |
| BLEACHERITES | • bleacherites n. Plural of bleacherite. • BLEACHERITE n. one who sits in the bleachers, uncovered seats. |
| BREUNNERITES | • BREUNNERITE n. an iron-containing type of magnesite used in the manufacture of refractory bricks. |
| CASSITERITES | • cassiterites n. Plural of cassiterite. • CASSITERITE n. native tin dioxide, the major ore of tin, aka tinstone. |
| CERARGYRITES | • cerargyrites n. Plural of cerargyrite. • CERARGYRITE n. a mineral consisting of silver chloride in crystalline form, aka horn silver. |
| HYPONITRITES | • hyponitrites n. Plural of hyponitrite. • HYPONITRITE n. a salt or ester of hyponitrous acid. |
| LABRADORITES | • labradorites n. Plural of labradorite. • LABRADORITE n. a triclinic silicate of the plagioclase feldspar series which may show a bluish or multicoloured iridescence. |
| MADREPORITES | • madreporites n. Plural of madreporite. • MADREPORITE n. in echinoderms, a perforated plate serving as opening to the stone canal. |
| MELANTERITES | • melanterites n. Plural of melanterite. • MELANTERITE n. native copperas. |
| OCTAHEDRITES | • OCTAHEDRITE n. a variety of anatase, crystallising in square bipyramids. |
| PERISTERITES | • peristerites n. Plural of peristerite. • PERISTERITE n. an albite feldspar with a pigeon-like play of colour. |
| PHOSPHORITES | • phosphorites n. Plural of phosphorite. • PHOSPHORITE n. fibrous apatite. |
| PYRARGYRITES | • pyrargyrites n. Plural of pyrargyrite. • PYRARGYRITE n. a deep-red to black silver ore. |