The following shall be the group of associated minerals for the purposes of section 6 namely:-
(a) Apatite, Beryl, Cassiterite, Columbite, Emerald, Felspar, Lepidolite, Pitchblende, Samarskite. Scheelite, Topaz, Tantalite, Tourmaline.
(b) Iron, Manganese, Titanium, Vanadium and Nickel minerals.
(c) Lead, Zinc, Copper, Cadmium, Arsenic, Antimony, Bismuth, Cobalt, Nickel, Molybdenum and Uranium minerals, and Gold and Silver, Arsenopyrite, Chalcopyrite, Pyrite, Pyrrhotite and Pentlandite.
(d) Chromium, Osmiridium, Platinum and Nickel minerals.
(e) Kyanite, Sillimanite, Corundum, Dumortierite and Topaz.
(f) Gold, Silver, Tellurium, Selenium and Pyrite.
(g) Fluorite, Chalcocite, Selenium and minerals of Zinc, Lead and Silver.
(h) Tin and Tungsten minerals.
(i) Limestone and Magnesite.
(j) Ilmenite, Monazite, Zircon, Rutile, Leucoxene, Garnet and Sillimanite.
(k) Sulphides of Copper and Iron.
(l) Magnetite and Apatite.
(m) Magnesite and Chromite.
(n) Celesite and Phosphatic Nodules.
CHAPTER XII: MINERALS VALUATION