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Albite is a
plagioclase feldspar mineral. It is the
sodium endmember of the
plagioclase solid solution series. It
represents a
plagioclase with less than...
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Friedrich Christian Hessel (1796–1872) in 1826. The
series ranges from
albite to
anorthite endmembers (with
respective compositions NaAlSi3O8 to CaAl2Si2O8)...
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orthoclase endmember KAlSi3O8
albite endmember NaAlSi3O8
anorthite endmember CaAl2Si2O8
Solid solutions between orthoclase and
albite are
called alkali feldspar...
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chlorite +
albite +
quartz pumpellyite +
chlorite +
epidote +
albite +
quartz pumpellyite +
epidote +
stilpnomelane +
muscovite +
albite +
quartz In...
- of
orthoclase and
albite within the stone. The
diffracted light varies from
white to blue,
depending on the
thinness of the
albite layers. More technically...
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Perthite is
either microcline or
orthoclase with thin
lamellae of
exsolved albite.
Amazon stone, or amazonite, is a
green variety of microcline. It is not...
- hornblende/actinolite +/-
albite +/-
biotite +/-
quartz +/-
garnet (calcite +/- wollastonite) Pelite; quartz,
orthoclase +/-
albite, +/-
biotite +/- actinolite...
- moonstone, also murchisonite,
Ceylon opal,
hecatolite — a
decorative variety of
albite (oligoclase) of
white or
light gray
color with a
distinct iridescence effect...
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lattice i.e. niobium,
zirconium Albitite, from
replacement of
plagioclase by
albite (albitization)
Effects of
metasomatism in
mantle peridotite can be either...
- of the
minerals glaucophane + (
lawsonite or
epidote ) +/-
jadeite +/-
albite or
chlorite +/-
garnet +/-
muscovite in a rock of
roughly basaltic composition...
