Question

Which one of the following correctly depicts a mineral and its composition?

Group of answer choices

Diamond - D

Quartz - SiO2

Calcite - CAlCO3

Gold - Go

Answer 1

Answer of this question is Quartz because its chemical composition is SiO_^​​​2 Called Silicon Oxide or Silicon Tertahedra. Calcite have the chemical composition CaCO₃ Which is a carbonate mineral having a high pressure polymorph Aragonite and another polymorph Vaterite. The Diamond have chemical composition Carbon​​​​​​ not D and its have a polymorph callers Graphite. The difference betwee Diamond and Graphite are there internal bonding and Crystallography System. Graphite belongs to hexagonal system where as diamond crystallised in Isometric system. Gold have chemical composition Au which is derived from its Latin name Arum.

If we see than all the above are mineral because all satisfy the definition of mineral I. E Naturally occurs Solide inorganic substance having a fixed chemical composition and may or may not have definite shape.

Calcite as Carbonate mineral

Diamond Gems mineral

Au as Native mineral

Quartz as a silicate mineral