what determines a minerals unique characteristics?\no age and location where its found\no color and…

Brief Explanations:

A mineral's unique characteristics are determined by its chemical composition, which dictates its elemental makeup, and its crystal structure, which influences its physical properties like hardness, cleavage, and luster. Age, location, color, temperature - resistance, size, and weight do not define a mineral's fundamental nature as much as chemical composition and crystal structure.

Answer:

D. Chemical composition and crystal structure