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The plane in crystals of the monoclinic system which is parallel to the vertical and the inclined lateral (clinidiagonal) axes.

Possessing the qualities of a prism, obliquely inclined to a rhombic base; monoclinic.

A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone.

An igneous, crystalline in structure, consisting essentially of a triclinic feldspar and hornblende. It includes part of what was called greenstone.

A dark-colored, basic, igneous rock, composed essentially of pyroxene and a triclinic feldspar with magnetic iron. By many authors it is considered equivalent to a coarse-grained basalt.

of a yellowish green (pistachio) color, occurring granular, massive, columnar, and in monoclinic crystals. It is a silicate of alumina, lime, and oxide of iron, or manganese.

r of the body, and is perpendicular to its axis of revolution. -- Magnetic equator. See Aclinic.

A sulphide of antimony, lead, and silver, occuring in monoclinic crystals.

he session. (e) (Chem.) To be converted (into a specified substance or material); as, monoclinic sulphur goes over into orthorhombic, by standing; sucrose goes over into dextrose and levulose. -- To go through. (a) To accomplish; as, to go through a work. (b) To suffer; to endure to the end; as, to go through a surgic…

Same as Monoclinic.

of the Zeolite family, often occurring in amygdaloid, in foliated masses, and also in monoclinic crystals with pearly luster on the cleavage face. It is a hydrous silicate of alumina and lime.

A mineral of a light indigo-blue color, occurring in small masses, or in monoclinic crystals; blue spar. It is a hydrous phosphate of alumina and magnesia.

A hydrous sulphate of lead and copper occurring in bright blue monoclinic crystals.

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

mineral of the feldspar group, like orthoclase or common feldspar in composition, but triclinic in form.

Same as Monoclinic.

A granular crystalline rock consisting essentially of a triclinic feldspar (as labradorite) and hypersthene.

A triclinic soda-lime feldspar. See Feldspar.

Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar.

Breaking in directions at right angles to each other; -- said of the monoclinic feldspars.