As a result, the chemistry of the fluids change and ore minerals rapidly precipitate.

With opaque ore minerals, reflected light from a microscope is needed for identification.

These crystals may settle onto the bottom of the intrusion, concentrating ore minerals there.

Chromite and magnetite are ore minerals that form in this way.

For copper, acids are generally needed to enhance solubility of the ore minerals within the solution.

Descloizite and mottramite were the main ore minerals in each of these deposits, which are now exhausted.

His expertise was ore minerals; hers, the sister science of paleontologyfossils.

Secondary ore minerals from the Sherman mine are popular with mineral collectors.

Of great importance are the numerous secondary ore minerals, amongst them some very rare species.

Hydrothermal ore minerals typically form from high temperature aqueous solutions.