-
groups according to the
structure of
their silicate anion: Note that
tectosilicates can only have
additional cations if some of the
silicon is replaced...
- Amazonite, also
known as Amazonstone, is a
green tectosilicate mineral, a
variety of the pot****ium
feldspar called microcline. Its
chemical formula is...
-
Feldspars (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8) are a
group of rock-forming
tectosilicate minerals that make up
about 41% of the Earth's
continental crust by...
- or
orthoclase feldspar (endmember
formula KAlSi3O8), is an
important tectosilicate mineral which forms igneous rock. The name is from the
Ancient Gr****...
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Lazurite is a
tectosilicate mineral with sulfate,
sulfur and
chloride with
formula (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)]. It is a
feldspathoid and a member...
-
Plagioclase is a
series of
tectosilicate (framework silicate)
minerals within the
feldspar group.
Rather than
referring to a
particular mineral with a...
- The
feldspathoids are a
group of
tectosilicate minerals which resemble feldspars but have a
different structure and much
lower silica content. They occur...
- and
instead of
veins of pyrite, is
intermixed with
green Lazurite – A
tectosilicate mineral and a
member of the
sodalite group List of minerals – A list...
-
Sodalite is a rich
royal blue
tectosilicate mineral with the
formula Na 8(Al 6Si 6O 24)Cl 2,
widely used as an
ornamental gemstone.
Although m****ive sodalite...
-
Microcline (KAlSi3O8) is an
important igneous rock-forming
tectosilicate mineral. It is a pot****ium-rich
alkali feldspar.
Microcline typically contains...