ZINCE METAL IN THE WEST
In 1597 Libavius in UK, a metallurgist received some zinc from India which was unknown to British people till then. In 1616 Parcelius gave the metal the name zinc. Even though Libavius named it as Malabar lead. William Champion a metallurgist, of Warmely, UK experimented in his copper plant, the production of zinc, using the technology followed in Zawarmala, Rajasthan. Technology went from India like this; Mr Beckman a scholar from UK reported that an English man has gone to India as early as 17th century and understand the process of production of zinc and returned with details of the distillation of zinc from its ore.
Prof. Poster another academician has written “ A Dr. Lane seems to have smelted zinc at his copper workshop in Sanesa, UK as early as 1720 and this was done after visiting Zawarmala in Rajasthan. However Champion’s work was in 1743 and he applied for the patent for zinc extraction. The patent court went through champion’s application and found that the process is same as done in Rajasthan and it commented that the process is plagiarism. The court said “ Champion was notoriously close with details of the Indian process of Zawar mines in Rajasthan and possibly a third party described the general principle of the process to Champion” The patent application was rejected at first. Later Champion modified the design, furnace, to some extent and got the patent.
However in India right from 1300 BC zinc metal extraction was common. One sheet of zinc metal was available from Agora a small town near Athens when evaluated using C14 dating, it was found that it was made in BC 500 and that too from Takshasila. This information was available from inscription. Hundreds of zinc producing furnaces were available from Rajapura, Dariba and Udaipur in Rajasthan where zinc production existed from 1300 BC onwards. Rasaratnasamucchayam type hundres of rasa based books explain with picture the zinc extraction technology.
IN THE SERVICE OF MOTHERLAND AND DHARMA
IISH COMMUNICATION TEAM