A 23.0 g sample of metal is heated to 100.0°C. A calorimeter contains 75.0 ml of water at 18.5°C. When the sample is added to the calorimeter, the sample and water reach thermal equilibrium at 21.1°C. What is the identity of the metal? A) Mn
B) V
C) Fe
D) N

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).