Hiden

Hiden is a sulfide mineral, a member of the chalcopyrite group, which includes its namesake mineral chalcopyrite often included in this group. Hiden is composed of copper, iron, and sulfur, with a chemical formula of Cu11Fe1S16. It was first identified in 1966 in the Buulo Burta spring, located in Dinagat Island, Philippines.

Hiden's crystal structure is similar to that of chalcopyrite, but with a slightly different arrangement of copper, iron, and sulfur atoms. This difference in structure affects its physical and optical properties, including its specific gravity and bonding behavior.

Hiden is a rare mineral, as it often forms in limited quantities and at specific locations. It can be found in hydrothermal veins and volcanic rocks, where the conditions are suitable for its formation. The name "hiden" was chosen to distinguish this mineral from other members of the chalcopyrite group due to its unique chemical and physical characteristics.

The formation and composition of hiden provide an interesting example of the complex processes that occur in geological systems. Its association with iron and copper suggests that hiden may have formed in environments where the oxidation of these metals was significant. Further study of hiden and similar minerals would provide valuable insights into the conditions required for their formation and the ways in which they can inform our understanding of the Earth's history.