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…
Table of Refractive Indices and Double Refraction of Selected Gems
Refractive indices and double refraction (birefringence) help gemologists identify gems. The following table lists these values for selected…
Phenomenal Gems – Unique Phenomena in Gemstones
Some optical effects in gemstones, such as color, brilliance, and dispersion, can be quite impressive. However, not all optical effects are considered…
Quartzite Value, Price, and Jewelry Information
Quartzite is a rock made up of tightly packed quartz grains. Sometimes, it contains small crystals that reflect light. This material is called…
List of False or Misleading Gemstone Names
A list of False or Misleading Gemstone Names and its Actual Gemological Name. Gathered by the source “Gemstones of the World, 3rd Edition, Walter…
Quartz Value, Price, and Jewelry Information
An overview on Quartz Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of a Quartz…
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