calcite and garnet Flashcards
This is a rock-forming mineral with a chemical formula of CaCO3.
Calcite
Calcite is most often found in a ___________,
especially in marine areas that are not very deep.
sedimentary setting
Color of calcite
Usually white but can also be colorless, gray, red, green, blue, yellow, brown, orange
Streak of calcite
White
Luster of calcite
Vitreous (like glass in appearance or physical properties.)
Diaphaneity of calcite
Transparent to translucent
Cleavage of calcite
Perfect, rhombohedral, three directions
Mohs hardness of calcite
3
They are the primary consumer of calcite in the form of limestone and marble. These rocks have been used as dimension stones. Modern construction uses calcite in the form of limestone and marble to
produce cement and concrete.
construction industry
Varieties of Calcite
Cobaltocalcite
Iceland Spar
Salmon Calcite
Sand Calcite
These are group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives.
Garnets
Garnet Groups
Almandine
Pyrope
Spessartine
Andradite
Uvarovite
Grossular
chemical composition of almandine
Fe3Al2(SiO4)3
chemical composition of pyrope
Mg3Al2(SiO4)3
chemical composition of spessartine
Mn3Al2(SiO4)3
chemical composition of andradite
Ca3Fe2(SiO4)3
chemical composition of uvarovite
Ca3Cr2(SiO4)3
chemical composition of grossular
Ca3Al2(SiO4)3
Color of garnet
Red, Orange, Yellow, Green, Blue, Purple, Brown, Black, Pink,
Colorless
Streak of garnet
White
Luster of garnet
Vitreous, resinous
Diaphaneity of garnet
Transparent to translucent
Cleavage of garnet
None
Mohs hardness of garnet
6.5-7.5
IMPORTANCE OF CALCITE IN ENGINEERING INDUSTRY
- Alternative for hazardous minerals.
- Used in rechargeable battery technologies.
- Abrasive blasting granules.
- Abrasive grits and powders.
- Filtration granules.
- Waterjet cutting granules.
- Gemstones
