黑发晶的主要功效，都是辟邪化凶、防小人及去病气。 与黑色系水晶功能大致相同。 对应人体的海底轮， 可强健肾脏， 吸走病气， 治疗不孕，帮助睡眠及使人行动更落实。 黑发晶以晶体中的发丝数量，和晶体的清澈度作为质素及能量的评级。
The main functions of black hair crystal are to ward off evil,
prevent bad people and remove disease. It has the same functions
as black crystal. It corresponds to the root chakra of the human
body,can strengthen the kidneys, absorb disease,treat infertility,
help sleep and make people more practical.The quality and energy
of black hair crystal are rated by the number of hairs in the crystal
and the clarity of the crystal. 
