This necklace features green and clear zircon set into a star shape, in sterling silver. Zircon is a zirconium silicate mineral (ZrSiO₄) known for its brilliance and clarity, and the green color results from trace elements or natural irradiation.

Details:

• Material: Natural green and clear zircon with sterling silver
  
• Formation: Zircon forms in igneous and metamorphic rocks; coloration may come from trace elements or natural irradiation
• Physical Properties: Mohs hardness 7.5, high refractive index, vitreous luster
• Educational Value: Demonstrates crystallography, trace-element effects on color, and optical properties of minerals

This sterling silver green zircon star necklace combines scientific intrigue with aesthetic design, making it a striking and educational piece.