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Staurolite is a
reddish brown to black,
mostly opaque,
nesosilicate mineral with a
white streak. It
crystallizes in the
monoclinic crystal system, has...
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minerals are
known as
index minerals.
Examples include sillimanite, kyanite,
staurolite, andalusite, and some garnet.
Other minerals, such as olivines, pyroxenes...
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minerals are
useful as well,
especially the
presence of the
polymorphs of
staurolite,
which occurs frequently with kyanite. However, the most
useful characteristic...
- the
mineral as are its
crystal face angles. For example,
crystals of
staurolite show
twinning at
angles of
almost precisely 90
degrees or 30 degrees....
- muscovite, biotite, garnet,
sodic plagioclase Staurolite zone: quartz, muscovite, biotite, garnet,
staurolite,
plagioclase Kyanite zone: quartz, muscovite...
- cross-polarized
light in
which feldspar crystals exhibit sericite alteration Staurolite-garnet
schist in thin
section under cross-polarized
light with sericite...
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opened on June 15, 1936, and is home to the
mysterious "fairy stones", or
staurolite. The stone,
prevalent in the region, may have the St. Andrew's or Roman...
- )
Spodumene Hiddenite (var.)
Kunzite (var.)
Triphane (var.)
Spurrite Staurolite Stibiotantalite Stichtite Stolzite Strontianite Strontium titanate Sulfur...
- and up to 1 km wide. At both
banded iron
formations (metamorphosed to
staurolite-grade itabirites) have been
enriched to form
haematite and haematite-goethite...
- (individual
crystals of
unusual size) of
distinctive minerals, such as garnet,
staurolite, kyanite, sillimanite, or cordierite.
Because schists are a very large...
