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(Arch.), a style of architecture which arose in the tenth century, characterized by great massiveness, simplicity, and strength, with the use of the semicircular arch, heavy round columns, and a great variety of ornaments, among which the zigzag and spiral or cable-formed ornaments were prominent.

A massive and fibrous mineral of a whitish color, chiefly hydrous silicate of lime.

A massive impure apatite, or calcium phosphate.

An arbor or trellis treated architecturally, as with stone columns or similar massive structure.

(min.) A massive variety of apatite.

rayed calicles, and a very porous coral. Some species are branched, others grow in large massive or globular forms.

d silver of a beautiful cochineal-red color, occurring in rhombohedral crystals, and also massive; ruby silver.

A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color.

A massive subcolumnar variety of topaz.

A low tower, having a truncated pyramidal form, and flanking an ancient Egyptian gateway. Massive pylons adorned with obelisks in front. J. W. Draper.

ilver ore. It is a sulphide of antimony and silver, occurring in rhombohedral crystals or massive, and is of a dark red or black color with a metallic adamantine luster.

phate with lead chloride, occurring in bright green and brown hexagonal crystals and also massive; -- so called because a fused globule crystallizes in cooling.

neral occurring in monoclinic crystals, with a prismatic angle of nearly 90º, and also in massive forms which are often laminated. It varies in color from white to dark green and black, and includes many varieties differing in color and composition, as diopside, malacolite, salite, coccolite, augite, etc. They are all…

metimes also yellow, brown, purple, green, and of other colors; also in cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque.

Massive quartz occurring as a rock; a metamorphosed sandstone; -- called also quartz rock.

Manganese carbonate, a rose-red mineral sometimes occuring crystallized, but generally massive with rhombohedral cleavage like calcite; -- called also dialogite.

A massive lamellar variety of pyroxene, of a dingy green color. [Written also sahlite.]

A mineral of a white to blue or gray color, occuring commonly in dodecahedrons, also massive. It is a silicate of alumina and soda with some chlorine.

ity or affection of matter by which its particles exclude or resist all others; hardness; massiveness. That which hinders the approach of two bodies when they are moving one toward another, I call solidity. Locke.

some leagues to sea." Shak. On its outer point, some miles away. The lighthouse lifts its massive masonry. Longfellow.