A rare zinc iron tungstate of the Wolframite group, typically black. It's a grounding stone associated with enhancing strength and perseverance.
Black, Brownish-Black, often with a submetallic luster
Sanmartinite is a fascinating mineral with unique geological characteristics. Detailed scientific information is often available through specialized mineralogical resources.
Comprehensive geological data for Sanmartinite is currently being compiled. Please consult specialized mineralogical databases for detailed information.