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These minerals are described as ‘ free ’ silica as the SiO < sub > 2 </ sub > is not attached to another element to create a new mineral.
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These and minerals
These microorganisms actually gain energy by breaking down minerals into their constituent elements.
These electronegative elements are strongly associated with metal-bearing minerals, where they have formed water-insoluble compounds with the metals in the ores.
These are all modern, and there was no noticeable exploitation of metals or minerals prior to the modern era.
These are less general, and apply to specific minerals.
These two groups of minerals are subgrouped by octahedral occupation ; specifically, kaolinite and pyrophyllite are dioctahedral whereas serpentine and talc trioctahedral.
These asbestos minerals form long, thin, flexible, and strong fibres, which are electrical insulators, chemically inert and heat-resistant ; as such, they have several applications, especially in construction materials.
These minerals tend to be soft, weak, brittle, and water-soluble.
These two minerals species are members of eponymous mineral groups: the calcite group includes carbonates with the general formula XCO < sub > 3 </ sub >, and the dolomite group constitutes minerals with general formula XY ( CO < sub > 3 </ sub >)< sub > 2 </ sub >.
These particles, or chondrules, are composed mostly of silicate minerals that appear to have been melted while they were free-floating objects in space.
These temperatures are experimentally determined in the lab by artificially resetting sample minerals using a high-temperature furnace.
These minerals are mostly found in China, the USA, Brazil, India, Sri Lanka and Australia ; China is by far the world leader in samarium mining and production.
These cementing materials may be either silicate minerals or non-silicate minerals, such as calcite.
These minerals make up the framework components of the sandstones.
These minerals are primarily carbonates, sulfides, or oxides of the metal, mixed with other components such as silica and alumina.
These are known as greenstone belts, because low-grade metamorphism of basalt produces chlorite, actinolite, epidote and other green minerals.
These released elements form authigenic quartz, chert, calcite, dolomite, ankerite, hematite and albite, all trace to minor ( except quartz ) minerals found in shales and other mudrocks.
These are the three most abundant components of sandstones ; all other minerals are considered accessories and not used in the naming of the rock, regardless of abundance.
These minerals, known as index minerals, include sillimanite, kyanite, staurolite, andalusite, and some garnet.
These minerals formed during the crystallization of igneous rocks.
These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic.
These include iron, nickel, cobalt, some alloys of rare earth metals, and some naturally occurring minerals such as lodestone.
These minerals are usually essential plant nutrients and are referred to as agrominerals.
These and are
These are just another couple of characters to roll.
These men are not callous.
These things are important to almost all Persians and perhaps most important to the most ordinary.
These are traversed by another line of vaults, and thus rooms, arched on all four sides, are formed.
These songs ( practically all Persian music, for that matter ) are limited to a range of two octaves.
These are not, however, differences in federal structure.
These my grandmother left in their places ( they are still there, more persistent and longer-lived than the generations of man ) and planted others like them, that flourished without careful tending.
These are like the initial ways in which the world forces itself upon the self and thrusts the self into decision and choice.
These are suggestive of Selma Lagerlof.
These assumptions lead to an organization with one man at the top, six directly under him, six under each of these, and so on until there are six levels of personnel.
These ways are absolutely irreconcilable because they offer two different recipes for man's redemption from chaos.
These responses are explicable in terms of characteristics inherent in the crisis.
These discoveries are of present interest chiefly to the scientific community ; ;
These are personality factors ; ;
These are, if the research is done with subtlety and skill, researchable topics, but the research is missing.
These moments are historical events in the lives of individual authors with which the student of comparative literature must be frequently concerned.
These lives are in themselves outside of the moral order and are unburdened with moral responsibility.
These conceptions and the manner in which they were transposed into poetry or engendered by poetic form are intrinsic to western life from the time of Aeschylus to that of Shakespeare.
These biographical analogies are obvious, and far too much time has been spent speculating on their possible implications.
These women whose organization grew out of the old suffrage movement are dedicated to Thomas Jefferson's dictum that one must cherish the people's spirit but `` Keep alive their attention ''.
These are, of course, the same people whose support he has only now rejected to seek the independent vote.
These are New York, Pennsylvania, Michigan, Maryland, Missouri, New Jersey, Illinois and Minnesota.
These men are spenders.
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