-how people got
Each color required a technique for obtaining the land used yellow ocher and iron oxide for red, ocher, sulphide of mercury, to obtain the purple it would be a mollusk, to obtain black, used ivory, bone and charred wood, and soot to obtain the green color, used, vapors of vinegar on copper plates, to obtain white calcium carbonate used to obtain the blue color that came from Alexandria , copper and calcium silicate,
The word comes from the candidate Latin word candidus (White), refers to the linen he wore the applicant to demonstrate the purity of their political intentions.
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