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It forms clay minerals.
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What is plagioclase feldspar with quartz and olivine?
Diorite
How is plagioclase used?
Plagioclase feldspar is used most commonly in ceramics, glass, enamel, soap, false teeth, and scouring powders. Another form of feldspar, potassium feldspar, has very similar uses.
Which is the most abundant feldspar mica quartz calcite?
Feldspar is the most abundant mineral in the earth crust.
What is a sodium an calcium feldspar with twinning striations called?
Plagioclase.
The two most abundant minerals always present in granite are?
Quartz, Plagioclase Feldspar, and Alkaline Feldspar.
Which is the dominant feldspar in basalt?
Plagioclase
What is Obsidians' composition?
potassiun feldspar, quartz, plagioclase feldspar,biotite, and amphibole.
What is plagioclase feldspar with quartz and olivine?
Diorite
How is plagioclase used?
Plagioclase feldspar is used most commonly in ceramics, glass, enamel, soap, false teeth, and scouring powders. Another form of feldspar, potassium feldspar, has very similar uses.
Which is the most abundant feldspar mica quartz calcite?
Feldspar is the most abundant mineral in the earth crust.
What is a sodium an calcium feldspar with twinning striations called?
Plagioclase.
What is the mineral of andesite?
plagioclase feldspar, pyroxene, horneblende (amphibole)
The two most abundant minerals always present in granite are?
Quartz, Plagioclase Feldspar, and Alkaline Feldspar.
Is plagioclase composed of a single element?
No. The chemical formula of Plagioclase feldspar is (Na,Ca)(Si,Al)4O8
What happens to the melting point of plagioclase feldspar when it is pushed further into the earth?
the melting point decreases as pressure increases, so the further into the earth feldspar is pushed, the higher the pressure and the lover the melting point
What is the most calcium-rich variety of plagioclase feldspar called?
Anorthite
Name two rocks from the intermediate family?
plagioclase feldspar & hornblende
