macrocrystalline


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macrocrystalline

[¦mak·rō′krist·əl·ən]
(petrology)
Pertaining to the texture of holocrystalline rock in which the constituents are visible without magnification.
Pertaining to the texture of a rock with grains or crystals greater than 0.75 millimeter in diameter in recrystallized sediment.
References in periodicals archive ?
Nitrofurantoin monohydrate macrocrystalline formulation, given orally as a 5-day course, is well tolerated, has good efficacy and a low propensity for ecologically adverse events.
Our primary products are white oils, petrolatums, macrocrystalline waxes, and petroleum distillates.
A comparative trial of low dose cefaclor and macrocrystalline nitrofurantoin in the prevention of recurrent urinary tract infection.
The most common combination of co-processed excipients consists of mixtures of macrocrystalline cellulose, lactose mono-hydrate, cornstarch, crospovidone, colloidal anhydrous silica and lubricants such as magnesium stearate, stearic acid or sodium stearylfumarate.
This type of calcite generally forms grains or crystals 10 microns or more in diameter and is distinguished from macrocrystalline calcite by it's clarity as well as coarser crystal size.
It has a platy and unique microcrystalline structure, providing a higher surface area at the same fineness as macrocrystalline talc commonly found on the market, according to the literature.
They can occur in the macrocrystalline form or as microcrystalline particles.
A Leitz Wetzlab polarized optical microscope was used to acquire the image of actual macrocrystalline structures of PA6 in solid and microcellular injection molded parts.
Quartz is present at all five of the west-central Illinois localities, as both cryptocrystalline and macrocrystalline varieties.
McAuley produces macrocrystalline glazed ceramics, Pavlov creates wood and birch-bark carvings, and Weise works with pastels and oils.
PE, other polyolefins, TP0s, many engineering thermoplastics, and select thermoset polymers, inlcud-ing patented and proprietary specialty HAR (high-aspect-ratio) and submicron Jetfine talcs, high performance ampact and JetFil line of macrocrystalline talcs; high performing Suzorite and Muscovite mica products, Mistron talcs for film antiblocking and for rubber applications, and other well-known brands of Stellar, JetFil, Silverline, Nicron and Vertal macro-crystalline and micro-crystalline talcs, Kings Mountain and Suzorite micas, plus special surface modified talc and mica grades for enhanced performance in scratch resistance, heat stability, odor reduction, impact resistance, etc.
First mineralogical descriptions and chemical characterization of clay minerals and related phyllosilicates, including their macrocrystalline equivalents denoting mineral species or giving group and series names, go back to the 18th century: chlorite /a group name/, lepidolite /a series name/, mica /a group name/, montmorillonite, talc; terms mica, kaolinite (or kaolin), talc, similarly as "clay" or fuller's earth (Robertson, 1986), being still much older.