GENERAL GEOLOGY

Detailed explanation-1: -In fact, two or more minerals may have the same chemical composition, but differ in crystal structure (these are known as polymorphs). For example, pyrite and marcasite are both iron sulfide, but their arrangement of atoms differs.

Detailed explanation-2: -Polymorphs are minerals that will have two identical mineral structures, but different chemical compositions. False. Graphite and diamonds are polymorphs because both are made up of carbon atoms. Only eight elements make up the vast majority of rock-forming minerals.

Detailed explanation-3: -Two minerals that have the same chemical composition but different crystal lattice structures are called polymorphs.

Detailed explanation-4: -A polymorph is a mineral with the same chemical composition but a different internal structure. Aragonite and calcite are polymorphs – both contain calcium carbonate (CaCO3) but have different internal structures.

Detailed explanation-5: -Crystal polymorphism is the phenomenon whereby crystals formed by the same kinds of molecules can take different forms depending on the intermolecular arrangements. This can result in large variations in the effectiveness of medicines due to differences in chemical properties such as solubility.