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and other igneous minerals
Locality: Mexico
has the mercedes termination and glossy high luster characteristic of the Erongo region
this pair of long straight points is completely coated in a dull mineral crust
Glue is visible in several spots when studied closely
Chocolate dogtooth calcite, large Stalactitic chalcedony and other igneous mineralsLocale: Santa Eulalia, Chihuahua, Mexico Approx size: 5 x 3 x 1. 75" Approx weight: 372g Known by the trade name "chocolate dogtooth calcite," this type of calcite from the famed Santa Eulalia mining district grows in hedgehog clusters of sharp dogtooth (scalenohedral) crystals. The variety gets its distinctive opaque dark brown appearance from iron oxides; a layer of hematite included calcite is deposited on the surface during a later phase of
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