31. Chalcopyrite is the principal ore mineral.32. Small amounts of pyrite, sphalerite and exsolved pentlandite and chalcopyrite are present with the pyrrhotite. 33. CZTS is similar to the chalcopyrite structure of CIGS but uses only earth-abundant elements. 34. Chalcopyrite reached 780C in 1 minute.35. The mine also extracts pyrite, chalcopyrite , magnesite, native gold, and native silver. 36. There is limited substitution of Zn with Cu despite chalcopyrite having the same crystal structure as sphalerite. 37. In this environment chalcopyrite is formed by a sulfide liquid stripping copper from an immiscible silicate liquid. 38. Crystallographically the structure of chalcopyrite is closely related to that of zinc blende ZnS ( sphalerite ). 39. The most common addition is calcinied ash of purified Swarna Makshik which in modern terms is Chalcopyrite . 40. Other minerals noted within the ore bodies are willemite, sphalerite, chalcopyrite and rare native copper.