Search the Dictionary

A nearly opaque white mineral, in part identical with titanite, observed in some igneous rocks as the result of the alteration of titanic iron.

A whitish, reddish, or yellowish, transparent or translucent mineral, allied to chabazite.

A mineral of an olive-green color, commonly in orthorhombic crystals. It is a hydrous phosphate of copper.

s a distinct class or type; as, low life; a good or evil life; the life of Indians, or of miners. That which before us lies in daily life. Milton. By experience of life abroad in the world. Ascham. Lives of great men all remind us We can make our lives sublime. Longfellow. 'T is from high life high characters are drawn…

Mineral coal retaining the texture of the wood from which it was formed, and burning with an empyreumatic odor. It is of more recent origin than the anthracite and bituminous coal of the proper coal series. Called also brown coal, wood coal.

A mineral of pale steel-gray color and metallic luster, occurring in isometric crystals, and also massive. It is a sulphide of cobalt containing some nickel or copper.

Combining forms fr. Gr. li`qos a stone; -- used chiefly in naming minerals and rocks.

A metallic element of the alkaline group, occurring in several minerals, as petalite, spodumene, lepidolite, triphylite, etc., and otherwise widely disseminated, though in small quantities.

The doctrine or science of the origin of the minerals composing the globe.

ing to the character of a rock, as derived from the nature and mode of aggregation of its mineral contents.

The science which treats of rocks, as regards their mineral constitution and classification, and their mode of occurrence in nature.

Position; situation; a place; a spot; esp., a geographical place or situation, as of a mineral or plant.

enoting a discourse, treatise, doctrine, theory, science; as, theology, geology, biology, mineralogy.

A mineral occurring in small, green, transparent, monoclinic crystals. It is a hydrous phosphate of iron.

The appearance of the surface of a mineral as affected by, or dependent upon, peculiarities of its reflecting qualities.

Any crude mixture of mineral or organic matters in the state of a thin paste. Ure.

fusible with difficulty, but easily oxidized. Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc. Symbol Mn. Atomic weight 54.8.

A mineral related to the micas, but low in silica and yielding brittle folia with pearly luster.

mass; not necessarily without a crystalline structure, but having no regular form; as, a mineral occurs massive. Massive rock (Geol.), a compact crystalline rock not distinctly schistone, as granite; also, with some authors, an eruptive rock.

A fine white claylike mineral, soft, and light enough when in dry masses to float in water. It is a hydrous silicate of magnesia, and is obtained chiefly in Asia Minor. It is manufacturd into tobacco pipes, cigar holders, etc. Also called sepiolite.