History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c17.s4.t2.22
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c17.s4.t2.22
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v1.c17.s4.t2.22
Electron diffraction studies have further shown that the complex Zawar ore contains not only sphalerite (α- and β ZnS) and galena (PbS) as the major phases but also red silver, pyrite, chalcopyrite, anglesite (PbSO₄), PbCO₃, calamine or Zn₄(OH)₂Si₂O₇, H₂O etc. (Biswas, A.K., 1981). The gangue impurities are dolomite, quartz and white mica.