Final Answer:
In order for a particular type of material to be classified as a mineral, it must d. It must have a definite chemical composition and a crystalline structure.
Step-by-step explanation:
Minerals are naturally occurring inorganic substances with a specific chemical composition and a crystalline structure. The definite chemical composition means that a mineral is composed of specific elements in fixed proportions. The crystalline structure refers to the orderly arrangement of atoms within the mineral, giving it a distinct geometric shape. These characteristics are essential for a material to be classified as a mineral.
Minerals are identified and classified based on their chemical composition and crystal structure, which can be determined through various analytical techniques such as X-ray diffraction and spectroscopy. The specific arrangement of atoms in a mineral’s crystal lattice gives it unique physical properties, including hardness, cleavage, and color. Understanding these properties is crucial for identifying and categorizing minerals accurately.
The requirement for a definite chemical composition and crystalline structure distinguishes minerals from other materials such as rocks, which may not have a fixed chemical composition or an organized crystal lattice. This distinction is fundamental in the field of mineralogy and has practical applications in various industries, including geology, mining, and materials science.
So correct option is d. It must have a definite chemical composition and a crystalline structure.