"Ditroite" is a word in ENGLISH

A mineral of the feldspar family, triclinic in crystallization, and in composition a silicate of alumina and soda. It is …

A mineral of the feldspar family, commonly occurring in small glassy crystals, also a constituent of some igneous rocks. It …

A variety of pyroxene, usually of a black or dark green color, occurring in igneous rocks, such as basalt; -- …

A rock of igneous origin, consisting of augite and triclinic feldspar, with grains of magnetic or titanic iron, and also …

An igneous rock of feldspathic composition, lamellar in structure, and clinking under the hammer. See Phonolite.

A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited …

A dark green or bronze-colored laminated variety of pyroxene, common in certain igneous rocks.

A wall-like mass of mineral matter, usually an intrusion of igneous rocks, filling up rents or fissures in the original …

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

A dark-colored, basic, igneous rock, composed essentially of pyroxene and a triclinic feldspar with magnetic iron. By many authors it …

Produced by eruption; as, eruptive rocks, such as the igneous or volcanic.

A name originally given by the Italians to a kind of serpentine, later to the rock called euphotide, and now …

A name formerly applied rather loosely to certain dark-colored igneous rocks, including diorite, diabase, etc.

Pertaining to, having the nature of, fire; containing fire; resembling fire; as, an igneous appearance.

Resulting from, or produced by, the action of fire; as, lavas and basalt are igneous rocks.

A mass of igneous rock intruded between sedimentary beds and resulting in a mammiform bulging of the overlying strata.

Having a slender elongated form, like a lath; -- said of the feldspar of certain igneous rocks, as diabase, as …

A nearly opaque white mineral, in part identical with titanite, observed in some igneous rocks as the result of the …

An igneous rock consisting largely of chrysolite, with pyroxene and picotite (a variety of spinel containing chromium).

An inorganic species or substance occurring in nature, having a definite chemical composition and usually a distinct crystalline form. Rocks, …