20/12/2025
Bhasma Pariksha are classical qualitative tests described in Rasashastra to assess the proper formation, safety, and therapeutic suitability of metallic and mineral Bhasmas. Among these, Nishchandra, Rekhapurnata, Varitara, Unama, Amla-Dadhi, and Apunarbhava Pariksha are most commonly employed.
Pariksha confirms the complete incineration of the metal by ensuring the absence of metallic luster, indicating non-metallic and non-toxic nature.
Pariksha assesses the fineness of Bhasma; entry of particles into finger creases signifies extreme subtlety and better bioavailability.
Pariksha, where Bhasma floats on water, evaluates lightness and proper calcination, while
Pariksha, a confirmatory test, demonstrates superior fineness when a rice grain placed over floating Bhasma does not sink.
-Dadhi Pariksha examines chemical stability by observing reactions in acidic media; absence of discoloration or effervescence indicates purity.
Pariksha confirms the irreversible transformation of metal into Bhasma, ensuring it does not revert to its metallic form even after intense heating.
Collectively, these tests establish the quality, safety, stability, and therapeutic efficacy of Ayurvedic Bhasmas before clinical use.