gemstone
Green Tourmaline
Elbaite, Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4
AI-generated identification · may be incorrectHardness of 7 to 7.5 on the Mohs scale, vibrant green color, vitreous luster, and hexagonal crystal system with no distinct cleavage.
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Physical properties
Hardness of 7 to 7.5 on the Mohs scale, vibrant green color, vitreous luster, and hexagonal crystal system with no distinct cleavage.
Formation & geological history
Forms in pegmatites and hydrothermal veins through the crystallization of magma rich in water, boron, and lithium.
Uses & applications
Primarily utilized in high-end fine jewelry and sought after by mineral collectors worldwide.
Geological facts
Green tourmaline, also known as verdelite, often displays strong pleochroism, showing different shades of green when viewed from various angles.
Field identification & locations
Identified by its distinctive striated prismatic crystal habit, lack of cleavage, and high hardness; commonly sourced from Brazil, Afghanistan, and the USA.
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