Black Spinel Gemstones Hardness 8.0. Appearance Black spinel is the opaque jet-black variety of spinel . Black spinel is the premier black gemstone. With a hardness of 8, it's extremely durable.
Black spinel lacks the metallic lustre of hematite , another popular black gemstone.
Black spinel would make an attractive center stone when surrounded by diamond s or white sapphire s. Enhancements Black spinel is not enhanced. More information on gemstone enhancements. SPL222 New 1.68 ct. All rights reserved.