Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite
Borolanite and Litchfieldite
Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock