Here you will find one or more explanations in English for the word Feldspars.
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Feldspar
Feldspar Feld"spar`, Feldspath Feld"spath`, n. [G.
feldspath; feld field + spath spar.] (Min.)
A name given to a group of minerals, closely related in
crystalline form, and all silicates of alumina with either
potash, soda, lime, or, in one case, baryta. They occur in
crystals and crystalline masses, vitreous in luster, and
breaking rather easily in two directions at right angles to
each other, or nearly so. The colors are usually white or
nearly white, flesh-red, bluish, or greenish.
Note: The group includes the monoclinic (orthoclastic)
species orthoclase or common potash feldspar, and the
rare hyalophane or baryta feldspar; also the triclinic
species (called in general plagioclase) microcline,
like orthoclase a potash feldspar; anorthite or lime
feldspar; albite or soda feldspar; also intermediate
between the last two species, labradorite, andesine,
oligoclase, containing both lime and soda in varying
amounts. The feldspars are essential constituents of
nearly all crystalline rocks, as granite, gneiss, mica,
slate, most kinds of basalt and trachyte, etc. The
decomposition of feldspar has yielded a large part of
the clay of the soil, also the mineral kaolin, an
essential material in the making of fine pottery.
Common feldspar is itself largely used for the same
purpose.
Meaning of Feldspars from wikipedia
-
common members of the
feldspar group are the
plagioclase (sodium-calcium)
feldspars and the
alkali (pot****ium-sodium)
feldspars.
Feldspars make up
about 60%...
-
remaining orthoclase with pot****ium. The
resulting intergrowth of the two
feldspars is
called perthite. The higher-temperature
polymorph of KAlSi3O8 is sanidine...
- Pot****ium
feldspar refers to a
number of
minerals in the
feldspar group, and
containing pot****ium:
Orthoclase (endmember
formula KAlSi3O8), an important...
-
Feldspar is a
group of rock-forming minerals, including:
Alkali feldspar Alkali feldspar granite Pot****ium
feldspar Feldspar may also
refer to: A community...
-
Alkali feldspar granite, some
varieties of
which are
called 'red granite', is a
felsic igneous rock and a type of
granite rich in the
mineral pot****ium...
- USS
Feldspar (IX-159), a Trefoil-class
concrete barge designated an
unclassified miscellaneous vessel, was the only ship of the
United States Navy to be...
-
anorthite (%An) or
albite (%Ab).
There are
several named plagioclase feldspars that fall
between albite and
anorthite in the series. The
following table...
- co****-grained
quartz and
feldspars in
varying proportions.
These rocks are
classified by the
relative percentages of quartz,
alkali feldspar, and plagioclase...
-
Feldspar is an
album by
saxophonist and
composer Matana Roberts,
electric guitarist Sam Shalabi, and
double b****ist
Nicolas Caloia.
Consisting of seven...
-
crystals of
feldspar.
These feldspars are
known as
ternary because they
contain significant components of all
three endmember feldspars. The
feldspar has partly...
