microlite (mikrolit)

[ It is e entially a niobate of calcium. It was first found at Chesterfield in Ma achusetts, in minute crystals (whence the name), later in Virginia in larger crystals sometimes weighing several pounds. 2. Same as microlith : an incorrect use. microliter (mi-krō-lē'tėr), n. [ μικρός , small, [ liter .] The millionth part of a liter. microlith (mikro-lith), n. [ μικρός , small, + λίθος , stone.] A name proposed by Vogelsang, in 1867, to designate the "microscopic acicular components of rocks"; a "microscopic individual" ( Zirkel ) . The usage of later lithologists differs considerably in the application of this term. each having its own independent orientation, so that in polarized light it presents the appearance of a brilliantly colored mosaic. The micro granulitic structure, as this term is used by Lévy, differs from the micropegmatitic in the crystalline individuals of the latter having all one common orientation.