Tourmaline on Quartz Bookend, Brazil Snacks a group of woodcarvers of

a group of woodcarvers of all ages who work in an open-air workshop in Nairobi

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Tourmaline on Quartz Bookend, Brazil Snacks a group of woodcarvers ofSchorl, also known as "black tourmaline" or "black schorl", is a black form of tourmaline that often occurs as lustrous prismatic crystals. The crystals can be stubby or elongated and typically feature lengthwise striations. Many schorl crystals have flattened pyramidal terminations. They can also form in radiating, columnar, and stalactitic aggregations, as well as small, needle like inclusions within quartz (tourmalinated quartz) and in massive form.