Emerald Simulants: Green Gemstones
Since ancient times, emerald has been synonymous with “green.” However, there are so many more green gems, giving you plenty of alternatives…
Since ancient times, emerald has been synonymous with “green.” However, there are so many more green gems, giving you plenty of alternatives…
Refractive indices and double refraction (birefringence) help gemologists identify gems. The following table lists these values for selected…
Some optical effects in gemstones, such as color, brilliance, and dispersion, can be quite impressive. However, not all optical effects are considered…
Quartzite is a rock made up of tightly packed quartz grains. Sometimes, it contains small crystals that reflect light. This material is called…
A list of False or Misleading Gemstone Names and its Actual Gemological Name. Gathered by the source “Gemstones of the World, 3rd Edition, Walter…
An overview on Quartz Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of a Quartz…