Our sphalerite buying guide can help you learn how these gems are graded, what to avoid, and how to identify a high quality stone or a bargain in the rough.
Everything you ever wanted to know about sphalerite. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.
Gemstone luster describes how a gem's surface looks when it reflects light. Learn the common terms gemologists use for this property and what can affect it.
Streak testing is a destructive gemstone test rarely used by gemologists. Most gems leave no streak. Learn which gems do and what color they leave.
Learn what factors most influence a sphalerite appraisal and what kind of jewelry will best showcase this beautiful gemstone.