The following are the seven blemishes of iron :- heaviness, hardness, mixture with foreign matters, power of causing hysteria, power of causing inflammation, evil characteristics of stone, and power of causing constipation. Iron should be properly purified and incinerated, if not done so it is equal to great poison.<ref name=":8" />
नानारुजानाञ्च तथा प्रकोपं करोति हृल्लास मवैधलोहम् ॥
+
+
Evil effects of taking impure iron: Iron, not properly purified and incinerated, gives rise to the following :-impotency, leprosy, death, heart disease, colic, stone disease, hiccough, and even augmentation of many of the diseases the patient has already been suffering from.<ref name=":8" />