In 1911, amateur ornithologist Frank Willard marveled at the huge mesquite trees dominating the Santa Cruz River banks near what is now San Xavier Road south of Tucson: “The mesquite trees are wonders ...
Gold, a precious metal, mostly appears in alloys and only rarely in its pure form. Because of its physical properties, it is resistant to air, moisture, heat and many solvents. Gold also has a high ...
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