amnhnyc: It’s time for #MineralMonday! Emerald is the intense green form of beryl, which has m
amnhnyc: It’s time for #MineralMonday! Emerald is the intense green form of beryl, which has many color varieties. Typically, emeralds are heavily flawed, with cracks and inclusions of fluids and minerals from the rocks in which they grew. But not the Patricia Emerald. Famous for its crystal perfection, vibrant color, and large size (632 carats), the Patricia Emerald is remarkable for having been preserved in its original state and not cut into gems. It measures just over 2.5 inches (6.35 centimeters) tall and weighs about 4.4 ounces (0.12 kilograms). Photo: M. Shanley/ © AMNH #NewYorkRocks (at American Museum of Natural History)https://www.instagram.com/p/CQ8wbd5rjVb/?utm_medium=tumblr -- source link
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