The qualitative and quantitative properties of ore minerals are studied in the Museum's reflected light microscopy ... with horizontal field about 220 microns. A section through a cube of gold perched ...

Pyrite, chemically known as iron sulfide (FeS₂), is one of Earth’s most common sulfide minerals. Miners and prospectors have ...

Pyrite, known as 'Fool's Gold,' is a symbol of wealth and financial success. Believed to boost confidence, decision-making, and protection against financial negativity, it's used by many to ...