Vesuvianite
Vesuvianite is a green, brown, yellow, or blue silicate
mineral, Ca10Mg2Al4524. Vesuvianite occurs as
tetragonal crystals in
limestones that have been subjected to contact metamorphism. It was first discovered in or adjacent to
lavas on
Mount Vesuvius.
A blueish variety is known as
cyprine was first reported from
Franklin, New Jersey, the blue is due to impurities of copper.
Californite is a name sometimes used for
jade-like vesuvianite, also known as
California-,
American- or
Vesuvianite-jade.
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Encyclopedia
Vesuvianite is a green, brown, yellow, or blue silicate
mineral, Ca
10Mg
2Al
4524. Vesuvianite occurs as
tetragonal crystals in
limestones that have been subjected to contact metamorphism. It was first discovered in or adjacent to
lavas on
Mount Vesuvius.
A blueish variety is known as
cyprine was first reported from
Franklin, New Jersey, the blue is due to impurities of copper.
Californite is a name sometimes used for
jade-like vesuvianite, also known as
California-,
American- or
Vesuvianite-jade.
Xanthite is a
manganese rich variety. Idocrase is an older synonym sometimes used for
gemstone quality vesuvianite.
References