SG Specific gravity silver pick Collecting with the silver pick means buying specimens. An unusually underpriced specimen, a real treat to find but fairly rare. Knowledgeable collectors can spot sleepers from across the room, in the dark. Short wave ultraviolet light. The end of a crystal, preferably with faces.
Unterminated crystals are undesirable.
A roughly spherical solid nodule of quartz, often colorfully patterned. Basically an irregular hole, in rock. Synonyms include pocket, cleft, cavity, vugh. Finding a vug loaded with crystals is the name of the game. Jr. The Eclectic Lapidary is seeking helpful lapidary tips, tales of adventure, pictures of jewelry and commentary on lapidary issues.