3.95" Lustrous Black Tourmaline (Schorl) Crystal Cluster - Namibia

Lustrous Black Tourmaline (Schorl) Crystal Cluster - Namibia #239699

This is a stunning cluster of lustrous black tourmaline (schorl), collected from the Erongo Mountains in Namibia. The tourmaline is in excellent condition with pristine terminations. Small quartz crystals can be found peppered across the tourmaline.

It comes with an acrylic display stand.

Schorl, 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.

Schorl is a basic sodium iron aluminum boro-silicate with the generic chemical formula NaFe2 + 3Al6(BO3)3Si6O18(OH)4 . It has been used for everything from jewelry to piezoelectric guitar pickups.

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