Identifying garnets by species is complicated. Learn how to use refractive index, hue, and absorption spectrum readings to simply the separation process.
The Collector's Guide to the Minerals of New York State is ideal for both experts and hobbyists. Its information, organization, and photos are first rate.
What factors determine the light return of faceted gemstones? Facet quality, polish, color, and cut style all play roles. Learn more about these variables.
Learn which rough gemstones are ideal for beginning faceting practice. A progression of relatively inexpensive gem species can teach important skills.
Gem faceters must consider factors like brilliance, color, and faceting yield before choosing a cut style. Learn what a Barion cut can bring to a gemstone.
Garnet species are always found as mixtures. Learn what’s distinctive about the rhodolite variety.