Lath-shaped Lath"-shaped`, a. Having a slender elongated form, like a lath; -- said of the feldspar of certain igneous rocks, as diabase, as seen in microscopic sections. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • eaves lath — Eaves Eaves, n. pl. [OE. evese, pl. eveses, AS. efese eaves, brim, brink; akin to OHG. obisa, opasa, porch, hall, MHG. obse eaves, Icel. ups, Goth. ubizwa porch; cf. Icel. upsar dropi, OSw. ops[ a] drup water dropping from the eaves. Probably… …   The Collaborative International Dictionary of English

  • igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium

  • clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… …   Universalium

  • Agrellite — Infobox mineral name = Agrellite category = boxwidth = boxbgcolor = caption = formula = |NaCa2 [FSi4O10 molweight = color = White, grayish white, greenish white habit = Lath shaped like a small, thin plaster lath, rectangular in shape system =… …   Wikipedia

  • ophitic — adjective Etymology: ophite serpentine (stone), from Latin ophites, from Greek ophitēs (lithos), from ophitēs snakelike, from ophis snake; akin to Sanskrit ahi snake and probably to Latin anguis snake, anguilla eel, Greek enchelys eel, echidna… …   New Collegiate Dictionary

  • trachytic — adjective Date: 1827 of or relating to a texture of igneous rocks in which lath shaped feldspar crystals are in almost parallel lines …   New Collegiate Dictionary

  • Labradorite — ((Ca,Na)(Al,Si)4O8), a feldspar mineral, is an intermediate to calcic member of the plagioclase series. It is usually defined as having %An (anorthite) between 50 and 70. The specific gravity ranges from 2.71 to 2.74. The streak is white, like… …   Wikipedia

  • Spherulite — Spherulites, in petrology, are small, rounded bodies that commonly occur in vitreous igneous rocks. They are often visible in specimens of obsidian, pitchstone and rhyolite as globules about the size of millet seed or rice grain, with a duller… …   Wikipedia

  • Phenocryst — A phenocryst is a relatively large and usually conspicuous crystal distinctly larger than the grains of the rock groundmass of a porphyritic igneous rock. Phenocrysts often have euhedral forms either due to early growth within a magma or by post… …   Wikipedia

  • Diabase — /ˈd …   Wikipedia