Palygorskite Value, Price, and Jewelry Information
Although marketed as “angel skin opal,” “rock wood,” and “mountain leather,” palygorskite is neither opal, wood, nor leather.…
Although marketed as “angel skin opal,” “rock wood,” and “mountain leather,” palygorskite is neither opal, wood, nor leather.…
The idea of a single birthstone for each month is a modern idea with a long history, but today’s consumers can choose gems from traditional or modern…
Gemologists sometimes measure gemstone density or specific gravity to help with gem identification. Learn the basics of this property and how…
Learn how varied gemology careers can be. Our gemology book reviews highlight three different approaches — as art, science, and business.
In the gem design stage of jewelry making, faceters evaluate a stone’s qualities. Learn how to choose a cut for a gemstone as unique as your personal…
Can gem grading avoid subjective terms? Learn about gemologist Jeff Graham’s common sense gemstone grading system, an alternative to commercial…
Leftover gemstone rough is a great material for learning to cut cabochons. Learn advanced cabbing techniques and find new inspiration for jewelry…
Gemology is both art and science. Learn how identifying gemstones combines traditional testing techniques, modern software, and deductive…