APATITE

 Apatite is part of the phosphate mineral group. Origin of name: From Greek apate meaning deceit alluding to its similarity to other more valuable minerals such as olivine, peridot and beryl. Apatite is found in different worldwide locations like: Russia, Canada, Mexico, Spain and Africa.
Colour: varies from being transparent to opaque, with colours ranging from yellow, green, blue, violet and colourless.
Hardness: 5
N.B.This stone is very sensitive to heat and care needs to be taken.