Black Amethyst is very hard to come by. A few years ago, it was more readily available, but more recently its supplies have diminished. Because of the lack of availability, it has increased in value. If you can find a specimen, black amethyst could be a great and valued addition to your collection.
The black color in the amethyst contains hematite which makes it an excellent grounding and protection stone. Its energy works extremely well to calm and break up any stagnant and dense energies that are bogging you down. It also is a great stone for rejuvenation of your energy field, and a restoration crystal for anyone burnt out. It is particularly good for healers that are working to help others as it restores their energy.
Black amethyst is also coveted for deflecting and cleaning up the electro-magnetic waves of computers, cell phones, and other electronic equipment that are emitting radiation. Because of the valuable work it does to clear and transform electro-magnetic waves of energy, it needs to be cleansed. An immersion in cold water from time to time will restore black amethyst to peak working order.
*Measurements are approximate.
Crystals vary in Sizes, Shapes, Colors, and Measurements.