2.05" Dravite Crystal Cluster - St. Lawrence County, NY

Dravite Crystal Cluster - St Lawrence County, NY #37823

Dravite, also known as "brown tourmaline," is composed of sodium, magnesium, aluminum, and boro-silicate, with the chemical formula of NaMg3Al6(BO3)3Si6O18(OH)3F. Dravite is a subclass of tourmaline, which along with schorl tourmaline and uvite (also subclasses of tourmaline), form into a prismatic/columnar formation.

This prismatic structure can be seen on this dravite specimen.

Powers Farm, Classic Digging Area, Pierrepont, St. Lawrence County, NY.
This Dravite was collected by Michael Walter August 27th, 2013

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