Muscovite (also known as common mica, isinglass, or potash mica) source
Muscovite (also known as common mica, isinglass, or potash mica)
Muscovite is a phyllosilicate mineral of aluminium and potassium with formula KAl2(AlSi3O10)(F,OH)2, or (KF)2(Al2O3)3(SiO2)6(H2O). source
Muscovite is a phyllosilicate mineral of aluminium and potassium with formula KAl2(AlSi3O10)(F,OH)2, or (KF)2(Al2O3)3(SiO2)6(H2O).
Muscovite has a highly perfect basal cleavage yielding remarkably thin laminae (sheets) which are often highly elastic. source
Muscovite has a highly perfect basal cleavage yielding remarkably thin laminae (sheets) which are often highly elastic.
Sheets of muscovite 5 m × 3 m have been found in Nellore, India. source
Sheets of muscovite 5 m × 3 m have been found in Nellore, India.
Muscovite has a Mohs hardness of 2–2.25 parallel to the [001] face, 4 perpendicular to the [001] and a specific gravity of 2.76–3. source
Muscovite has a Mohs hardness of 2–2.25 parallel to the [001] face, 4 perpendicular to the [001] and a specific gravity of 2.76–3.
Muscovite can be colorless or tinted through grays, browns, greens, yellows, or (rarely) violet or red, and can be transparent or translucent. source
Muscovite can be colorless or tinted through grays, browns, greens, yellows, or (rarely) violet or red, and can be transparent or translucent.
Muscovite is anisotropic and has high birefringence. source
Muscovite is anisotropic and has high birefringence.
Muscovites crystal system is monoclinic. source
Muscovites crystal system is monoclinic.
The green, chromium-rich variety is called fuchsite; mariposite is also a chromium-rich type of muscovite. source
The green, chromium-rich variety is called fuchsite; mariposite is also a chromium-rich type of muscovite.
Muscovite is the most common mica, found in granites, pegmatites, gneisses, and schists, source
Muscovite is the most common mica, found in granites, pegmatites, gneisses, and schists,
In pegmatites, Muscovite is often found in immense sheets that are commercially valuable. source
In pegmatites, Muscovite is often found in immense sheets that are commercially valuable.
Muscovite is in demand for the manufacture of fireproofing and insulating materials and to some extent as a lubricant. source
Muscovite is in demand for the manufacture of fireproofing and insulating materials and to some extent as a lubricant.
The name muscovite comes from Muscovy-glass, a name given to the mineral in Elizabethan England due to its use in medieval Russia. source
The name muscovite comes from Muscovy-glass, a name given to the mineral in Elizabethan England due to its use in medieval Russia.
Muscovite with albite from Doce valley, Minas Gerais, Brazil (dimensions: 6×5.3×3.9 cm) source
Muscovite with albite from Doce valley, Minas Gerais, Brazil (dimensions: 6×5.3×3.9 cm)
Muscovite with beryl (var. morganite) from Paprok, Afghanistan (dimensions: 5.9×4.8×3.4 cm) source
Muscovite with beryl (var. morganite) from Paprok, Afghanistan (dimensions: 5.9×4.8×3.4 cm)
