Black Spinel Crystal #3 measures approximately 1 11/16" x 1 1/16" x 3/4" (47.8mm x 30.0mm x 21.3mm) and weighs approximately 1.5 ounces (38.1 grams). The larger Black Spinel Crystals come from a different mine than the smaller ones, and the energy is a bit different. These are extremely hard to come by, and I acquired these many years ago.
(Healing Crystal, Grounding and Protecting Crystal)
Hardness: 7.5 - 8.0
Origin: Thailand