Albitite

albitite

[′al·bə‚tīt]
(petrology)
A porphyritic dike rock that is coarse-grained and composed almost wholly of albite; common accessory minerals are muscovite, garnet, apatite, quartz, and opaque oxides.

Albitite

 

a veined crystal-granular mineral consisting mainly of albite, sometimes with an admixture of quartz, muscovite, garnet, and acmite. Albitite can take the form of hydrothermically metasomatic formations linked with alkaline intrusions (in the Khibiny Mountains), with iron-ore formations (in the Ukraine), with gold-ore diorites (in the Ural Mountains and in California), or with ultrabasic rocks (in the Urals).

References in periodicals archive ?
01% igneous rocks including peridotite, dolerite, gabbro, granites albitite.
The lustrous, transparent crystals are floaters, or rest on green diopside or white albitite matrix.
In contrast, the Pinkneys Point granite was described as a more variable unit, containing topaz granite, greisenized granite, albitite, and greisen, and associated with mineralization, including cassiterite, wolframite, scheelite, and a variety of similar lithophile-element minerals (Chatterjee et al.
Let alone the petrographic difficulties of such a malevolent interpretation, such interpretation is easily disproven by the following observation: the Upper Triassic albitites (Barnes and Mattison, 1981 in Kimbrough and Moore, 2003) of San Pablo were not affected by those intrusion and consequent metamorphism.