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A spring or mineral water; -- so called from a place of this name in Belgium.

An old name for a nonmetallic mineral, usually cleavable and somewhat lustrous; as, calc spar, or calcite, fluor spar, etc. It was especially used in the case of the gangue minerals of a metalliferous vein. Blue spar, Cube spar, etc. See under Blue, Cube, etc.

Resembling spar in form. "The ocherous, spathiform, and mineralized forms of uranite." Lavoisier (Trans.).

A mineral found usually in thin, wedge-shaped crystals of a yellow or green to black color. It is a silicate of titanium and calcium; titanite.

A mineral occuring in octahedrons of great hardness and various colors, as red, green, blue, brown, and black, the red variety being the gem spinel ruby. It consist essentially of alumina and magnesia, but commonly contains iron and sometimes also chromium.

Consisting of splinters; resembling splinters; as, the splintery fracture of a mineral.

A mineral of a white to yellowish, purplish, or emerald-green color, occuring in prismatic crystals, often of great size. It is a silicate of aluminia and lithia. See Hiddenite.

A mineral consisting of tin ore and spar. Halliwell. Woodward. Squat snipe (Zoöl.), the jacksnipe; -- called also squatter. [Local, U.S.]

In an extended sense, any mineral or rock of similar form and origin; as, a stalactite of lava.

, SnO2, produced artificially as a white amorphous powder, and occurring naturally in the mineral cassiterite. It is used in the manufacture of white enamels, and, under the name of putty powder, for polishing glass, etc.

A mineral of a steel

A mineral of a brown to black color occurring in prismatic crystals, often twinned so as to form groups resembling a cross. It is a silicate of aluminia and iron, and is generally found imbedded in mica schist. Called also granatite, and grenatite.

mining the organs of the chest, as the heart and lungs, by conveying to the ear of the examiner the sounds produced in the thorax.

A mineral of a lead-gray color and brilliant metallic luster, occurring in prismatic crystals; sulphide of antimony; -- called also antimony glance, and gray antimony.

A common mineral of the zeolite family, a hydrous silicate of alumina and lime, usually occurring in sheaflike aggregations of crystals, also in radiated masses. It is of a white or yellowish color, with pearly luster on the cleavage surface. Called also desmine.

A black or greenish black mineral occurring in foliated flates, also in velvety bronze-colored incrustations. It is a hydrous silicate of iron and alumina.

Concreted earthy or mineral matter; also, any particular mass of such matter; as, a house built of stone; the boy threw a stone; pebbles are rounded stones. "Dumb as a stone." Chaucer. They had brick for stone, and slime . . . for mortar. Gen. xi. 3.

The fine powder or mark yielded by a mineral when scratched or rubbed against a harder surface, the color of which is sometimes a distinguishing character.

A steel-gray mineral of metallic luster. It is a sulphide of silver and copper.

Strontium carbonate, a mineral of a white, greenish, or yellowish color, usually occurring in fibrous massive forms, but sometimes in prismatic crystals.