This high quality Igneous Rock boxed set comes with 15 hand picked igneous rock specimens and is ideal for educational use in schools colleges university or simply individual use at home for private collectors.The set exhibits a broad variety of igneous rocks displaying different igneous textures and colours ideal for those wanting to sharpen their rock identification skills. Each specimen is selected broken to the correct size bagged & supplied in a strong card board box complete with a coloured photo data sheet with names and localities on the inside of the lid.The set includes:Biotite GraniteAdamellite ( Shap ) GraniteSyeniteDioriteGabbroMicrograniteOlivine DoleriteRhyoliteObsidianPumicePitchstoneAndesiteBasaltBirds Eye Lapilli TuffAgglomerateThe box is 30cm x 18cm and is 4cm deep.