Mica and pyrite are minerals found in the ground and in rocks that are excavated from quarries and used in building blocks. These minerals cause defects in building blocks, which lead to cracks and ...

It is, therefore, important to distinguish good stone combinations from bad. Pyrite, also known as the ‘Fools Gold’, is a ...

Great Southern Mining and Gold Fields Ltd have found a huge, 2km-wide induced polarisation target, potentially a big porphyry ...