GEOLOGY

Detailed explanation-1: -Compounds with the same chemical formula but with different crystal structures are called polymorphs. We can also say that they are different phases, different species, or different minerals; each of those ways of saying it is correct.

Detailed explanation-2: -A drug molecule may form multiple crystalline phases by itself, called polymorphs. Polymorphs have the same chemical composition but different internal structures.

Detailed explanation-3: -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.

Detailed explanation-4: -As an example of the first class, calcium carbonate has an orthorhombic form (i.e., having three unequal crystalline axes at right angles to each other) called aragonite and a hexagonal form (having three equal axes intersecting at angles of 60 degrees and a fourth axis at right angles to these three) called calcite.