Vesuvianite is a silicate mineral with the composition Ca₁₉Fe(Mg,Al)₈Al₄(SiO₄)₁₀(Si₂O₇)₄(OH)₁₀. It contains 6 of the big 8 elements of the Earth's surface. The sample at far left is about 2.5x5 cm and is from Jeffrey mine, Asbestos, Quebec, Canada. The sample near left is about 2x3 cm and is from Eden Hills, Vermont. These samples are displayed in the Smithsonian Museum of Natural History.

The sample below is described as brown vesuvianite with blue calcite. It is about 6 cm wide. It is from Crestmore, California and identified as being from the Cretacious period.

This sample is described as vesuvianite with bustamite and grossular. It is about 8x16 cm and is from Franklin, New Jersey.

Wiluite is a silicate mineral with the composition Ca₁₉(Al,Mg,Fe,Ti)₁₃(B,Al)₃Si₁₈O₆₈(OH,F,O)₁₀. It contains 6 of the big 8 elements of the Earth's surface plus titanium , boron and fluorine . This sample is about 8x11 cm and is from Viluy and Akhtaragda Rivers, Chernyshevskiy, Yakutia, Russia.