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The Zing of Zircon, Part 3: Types and Treatments
It is common for certain colours of zircon gemstone to be subjected to high temperature treatment as a means of enhancing their apparent hue, usually bringing low and intermediate type zircons...
The Zing of Zircon, Part 3: Types and Treatments
It is common for certain colours of zircon gemstone to be subjected to high temperature treatment as a means of enhancing their apparent hue, usually bringing low and intermediate type zircons...
The Zing of Zircon, Part 2: Curious Character a...
Zircon is somewhat unique among gemstones in that it occurs with a wide range of variable properties, namely its refractive index, birefringence, specific gravity, and mohs hardness. This variation is...
The Zing of Zircon, Part 2: Curious Character a...
Zircon is somewhat unique among gemstones in that it occurs with a wide range of variable properties, namely its refractive index, birefringence, specific gravity, and mohs hardness. This variation is...
The Zing of Zircon, Part 1: A Jaunty Jewel
Species Zircon Chemical Formula ZrSiO4 Mohs Hardness 6 - 7.5 Cleavage Indistinct Lustre Vitreous to Adamantine Refractive Index 1.78 - 2.01 Birefringence 0.000 - 0.059 Dispersion 0.039 Pleochroism Weak to...
The Zing of Zircon, Part 1: A Jaunty Jewel
Species Zircon Chemical Formula ZrSiO4 Mohs Hardness 6 - 7.5 Cleavage Indistinct Lustre Vitreous to Adamantine Refractive Index 1.78 - 2.01 Birefringence 0.000 - 0.059 Dispersion 0.039 Pleochroism Weak to...