Hello,

This Law of isomorphism or the law of isomorphism is the approximate law with suggest the Crystal composition that is composed of same number of similar elements tend to demonstrate isomorphism. This law can also be stated that the substances which have similar composition and same crystal structure with constant elctronic configuration are said to be isomorphous substances.

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Mischerlich,s law states that substances having similar compositions and almost same crustal structure or same electronic configuration are called isomorphous substances.

Eg - Green vitriol FeSO4.7H2O  and white vitriol ZnSO4.7H2O. Metals have same oxidation states here.

I have added examples so that understanding is better,

Dear candidate

Mitscherlichs law of isomorphism is the approximation law which means that it is similar but not exactly equal to anything giving that the crystals are collected of equal or same number but similar elements tends to demonstrate Isomorphism  which is similar to the word "equal" to something like size or shape.

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