Native Mineral

Copper was probably the first metal to be used by humans. Neolithic people are believed to have used as a substitute for stone by...

Antimony usually occurs in massive, leafy or granular form. It has a flaky texture that makes it shiny, silvery, bluish white and brittle. It occurs in rare, usually massive, leafy or granular form.

Gold has been the most prized metal that is a chemical element with the symbol Au. It is opaque, has a highly attractive metallic...

Sulfur is the tenth most common element by mass in the universe, and the fifth most common on Earth. It (also spelled sulphur) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent, and nonmetallic. Under normal conditions, atoms form cyclic octatomic molecules with a chemical formula S8.

As a native metal, bismuth has been known since the Middle Ages. A German monk named Basil Valentine first described it in 1450. Bismuth is often found uncombined with other elements, forming indistinct crystals, often in parallel groupings. It is hard, brittle, and lustrous. It is also found in grains and as foliated masses. Silver-white, it usually has a reddish tinge that distinguishes it. Specimens may have an iridescent tarnish. Bismuth is found in hydrothermal veins and in pegmatites and is often associated with ores of tin, lead, or copper,

The hardest known mineral, diamond is pure carbon. Its crystals typically occur as octahedrons and cubes with rounded edges and slightly convex faces. Crystals may be transparent, translucent, or opaque. They range from colorless to black, with brown and yellow being the most common colors. Other forms include bort or boart (irregular or granular black diamond) and carbonado (microcrystalline masses).