monomineralic

[¦män·ō‚min·ə¦ral·ik]

(petrology)

Of a rock, composed entirely or principally of a single mineral.

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However, marshallite can easily be processed by elutriation, air elutriation, and chemical processing with extraction of monomineralic fractions and a simultaneous decrease in [Fe.sub.2][O.sub.3] to a tenth of a percent.

THE LATE MIOCENE PELITIC SILTSTONE OF THE ISHIM FORMATION (SOUTHWESTERN SIBERIA): MINERALOGICAL AND GEOCHEMICAL CHARACTERIZATION AND PROSPECTS FOR FURTHER USE

Fifteen dolomite samples and five calcite samples were obtained for C-O isotopic analysis following the selection of monomineralic rocks from the 17 dolomite or limestone samples that were acquired for this study.

Identification of Two Types of Metallogenic Fluids in the Ultra-Large Huize Pb-Zn Deposit, SW China

The Digdeguash-Flume Ridge transition on the eastern flank of the Fredericton trough is marked by four significant changes: a rapid shift from non-calcareous to at least slightly calcareous sandstone; a decrease in grain size of the coarsest beds from granules and coarse sand to fine sand and silt; a sharp decrease in the amount of pelite (aluminous slate in D and E horizons of Digdeguash Bouma sequences is replaced by quartzofeldspathic siltstone in the Flume Ridge); and an increase in clast maturity of the coarse fraction, with typical sand-to granule-sized lithic fragments in the Digdeguash mostly giving way to monomineralic quartz and feldspar grains in the Flume Ridge.

Provenance and paleogeography of post-Middle Ordovician, pre-Devonian sedimentary basins on the Gander composite terrane, eastern and east-central Maine: implications for Silurian tectonics in the northern Appalachians

The monomineralic character of each grain is proven by its electron diffraction pattern, checking the existence of a single network and, therefore, a single crystalline phase.

Upper-pleistocene terrace deposits in Mediterranean climate: geomorphological and source-rock control on mineral and geochemical signatures (Betic Cordillera, se Spain)

The most efficient separation techniques operate on monomineralic particles obtained after crushing and grinding, but obviously this ideal situation can hardly be achieved and most often multiphasic or so-called unliberated particles are present in the process.

Textural descriptors for multiphasic ore particles

The celestine geodes are virtually monomineralic; unlike well-known celestine deposits in the U.S., France, Italy (Sicily), Germany and Poland, there is no associated hydrothermal calcite, aragonite, barite, quartz, sulfur or gypsum.

The Sakoany celestine deposit: Mahajanga Province, Madagascar

The highest grade, nearly monomineralic brucite deposits are found in aureoles where the protolith consists of magnesite with little or no calcite, clays, chert or other mineral impurities.

Brucite--Industrial Mineral with a future

Single (monomineralic) quartz grains accounted for more than half of the identifiable inclusions.

Qualitative petrographic analysis of selected ceramic sherds from two prehistoric sites in Tennessee

Although the thermal conductivity in monomineralic systems is mainly controlled by porosity and the thermal conductivity of pore fluid, the exact mathematical function between these two parameters is not self-evident due to variations in pore structure, microfracturing, and degree of saturation.

Thermal conductivity of Cambrian siliciclastic rocks from the Baltic basin/Balti basseini Kambriumi ladestu terrigeensete kivimite soojusjuhtivus

Most of the metacarbonate rocks are monomineralic (calcite or dolomite) but locally contain talc, muscovite, phlogopite, garnet, and minor tremolite.

Field relations, age, and tectonic setting of metamorphic and plutonic rocks in the Creignish Hills--North Mountain area, southwestern Cape Breton Island, Nova Scotia, Canada

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