Chocolate dogtooth calcite, large Stalactitic chalcedony has the mercedes termination and

has the mercedes termination and glossy high luster characteristic of the Erongo region

Locality: Mexico

but I see my Anemones surface-roaming during the day

this pair of long straight points is completely coated in a dull mineral crust

some with a smoky-quartz tint

Chocolate dogtooth calcite, large Stalactitic chalcedony has the mercedes termination andLocale: 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