Andalusite
Andalusite is an aluminum silicate gemstone noted for strong pleochroism between green, yellow, and brown hues.
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Olive gemstones
Explore 3 olive gemstones with detailed information about hardness, origin, and care instructions.
Serpentine
Serpentine is a group of hydrated magnesium silicates used widely as ornamental stone.
Tektite
Tektite is natural impact glass formed by meteorite impact events.