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Bytownite is a
calcium rich
member of the
plagioclase solid solution series of
feldspar minerals with
composition between anorthite and labradorite. It...
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Boracite Bornite Brazilianite Breithauptite Brookite Brucite Bustamite Bytownite Calcite Manganoan calcite (var.)
Caledonite Canasite Cancrinite Vishnevite...
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member (albite 2.62)
increases 0.02 per 10%
increase in
anorthite (2.75).
Bytownite,
named after the
former name for Ottawa, Ontario, Canada—Bytown— is a...
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certain composition;
those of
calcic labradorite (50–70% anorthite) and
bytownite (formula: (Ca0.7-0.9,Na0.3-0.1)[Al(Al,Si)Si2O8], i.e., with an anorthite...
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NaAlSi 3O 8 – CaAl 2Si 2O 8
labradorite (50 to 70) (Ca,Na)Al(Al,Si)Si2O8
bytownite (70 to 90) (NaSi,CaAl)AlSi2O8
anorthite (90 to 100) CaAl2Si2O8 Intermediate...
- Al)4O8 (Na:Ca 3:2)
Labradorite – (Ca,Na)(Si,Al)4O8 (Na:Ca 2:3)
Bytownite – (Ca,Na)(Si,Al)4O8 (Na:Ca 1:4)
Anorthite – CaAl2Si2O8 Tectosilicates...
- gaps in
phase systems are named,
including The
huttenlocher (found in
bytownite,
anorthite composition An55-95.),
boggild (in labradorite, An39-48 and...
- from sodium- to calcium-rich): oligoclase, andesine, labradorite, and
bytownite.
Other examples of
series include the
olivine series of magnesium-rich...
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Buergerite (renamed to fluor-buergerite)
Bursaite (not
approved by IMA)
Bytownite (variety of anorthite)
Cabalzarite Cabriite Cacoxenite Cadmium Cadmoindite...
- much
silica and alkalis. In the
mafic rocks labradorite, anorthite, and
bytownite prevail,
being rich in lime and poor in silica, potash, and soda. Augite...
