The key crystal is recognized, usually, by a three-sided of six-sided indented shape located on the crystal.

The indent becomes narrower as it goes within the crystal and ends within the crystal, usually in an apex

termination.  It is used to unlock the "doors" to healing concepts and to those aspects of the self

which tend to be illusive. It further helps one to answer questions like - why can't I...?

It also assists one in accessing that which is hidden in any situation. One can place the crystal on letters,

photographs, etc., in order to gain admittance to concealed or obscure messages which are inherent.

It can be used to assist in analytical problem-solving; placing the crystal upon a textbook, which

contains the information necessary to arrive at a solution, has stimulated the inner

knowledge of the answer.