mineral
Tourmalinated Quartz
Quartz with Tourmaline inclusions (SiO2 with Na(Fe3Al6)(Al5Si6O18)(BO3)3(OH)4)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale. Features transparent to translucent white quartz matrix contrasted with jet-black prismatic schorl tourmaline needles. Vitreous luster with hexagonal crystal systems.
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Physical properties
Hardness of 7 on the Mohs scale. Features transparent to translucent white quartz matrix contrasted with jet-black prismatic schorl tourmaline needles. Vitreous luster with hexagonal crystal systems.
Formation & geological history
Formed through hydrothermal processes where crystallizing quartz veins encapsulate pre-existing or co-growing tourmaline crystals deep within pegmatites.
Uses & applications
Widely utilized in high-end jewelry, decorative gemstone carvings, and sought after by mineral specimen collectors.
Geological facts
The distinct black needles are typically the iron-rich tourmaline variety known as schorl. It is often regarded as a powerful protective stone in metaphysical practices.
Field identification & locations
Easily identified visually by the striking contrast of dark needle-like crystals embedded within a clear or milky quartz matrix. Found globally in pegmatite-rich regions like Brazil, Madagascar, and the USA.
