Malachite, Calcite

Unknown Owner

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An excellent, old-time, large cabinet combination specimen from the Old Dominion Mine at Globe, Arizona. Sparkling, gemmy, emerald-green, primary malachite microcrystals in bubbly, botryoids richly cover the vuggy, quartz-rich matrix. Colorless, glassy calcite rhombs, in swaths or as isolated crystals are a nice accent. But the interesting thing about this piece is the fact that there are two secondary generations of malachite that cover the original primary malachite crystals: lighter green malachite richly scattered throughout; and pastel-green malachite on the fringes. An attractive, large combination piece from this historic Arizona locale, probably dating to the 1950s or earlier. Weighs 3.1 pounds or 1.4 kilograms.