epidote

1-ct clinozoisite, Pakistan. Photo courtesy of liveauctioneers.com and Jasper52.

1.42-ct epidote, Pakistan. © ARK Rare Gems. Used with permission.

5.25-ct epidote, Sri Lanka. © ARK Rare Gems. Used with permission.

The epidote mineral supergroup contains many related species of interest to collectors. However, epidote itself is the one most likely to be faceted…

Current Value of Epidote Based on Color, Cut, Clarity and Weight

  Mineral streak testing is fun if you have rough material to spare. It’s not recommended for finished gems, as there’s a good…

Silicates are the largest mineral class, making up over 90% of the Earth’s crust and mantle. Statistically, you are more likely to encounter…

Pleochroism means “more colors.” Pleochroic minerals show two or three colors when viewed from different angles. This property appears…

Silicates include well-known minerals such as zircon, topaz, and garnet. Learn how to identify minerals from two silicate sub-groups.