A green or yellow or brown mineral consisting of a hydrated silicate

• It occurs as crystals in limestone and is used a gemstone

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Vesuvianite \Ve*su"vi*an*ite\, n. (Min.) A mineral occurring in tetragonal crystals, and also massive, of a brown to green color, rarely sulphur yellow and blue. It is a silicate of alumina and lime with some iron magnesia, and is common at Vesuvius. Also ...

Wikipedia Word definitions in Wikipedia
Vesuvianite , also known as idocrase , is a green, brown, yellow, or blue silicate mineral . Vesuvianite occurs as tetragonal crystals in skarn deposits and limestones that have been subjected to contact metamorphism . It was first discovered within included ...

WordNet Word definitions in WordNet
n. a green or yellow or brown mineral consisting of a hydrated silicate; it occurs as crystals in limestone and is used a gemstone [syn: vesuvian , idocrase ]

Wiktionary Word definitions in Wiktionary
n. (context mineralogy English) A yellow, green or brown mineral, a mixed calcium, magnesium and aluminium silicate sometimes used as a gemstone.