Calcite

CALCITE
** Calcite is one of the softest minerals, and one of the most common on earth. It is often used in cements and mortars, and is the major component in Limestone and Limestone's igneous cousin, Marble.** While most minerals show only a few crystal formations, Calcite comes in over 300 different crystal forms! It is also one of the most colorful stones, covering all areas of the rainbow, and some are even iridescent. Calcite fluoresces purple or bright red under a black light, and also displays the interesting property of triboluminescence. This can be seen when Calcite is struck or put under pressure--it will glow in a dark room.** The word "Calcite" comes from the Greek chalix, meaning "lime" (as in "limestone").** Crystal healers use Calcite as an aid in memory and to enhance learning abilities (which makes it a good stone for students). It is said to increase prosperity and aid intuition.** Calcite has electrical properties. It shows electrical impulses under pressure, and is thus believed by crystal healers to amplify energy in the body.** Clear, smooth Calcite crystals show double refraction. Light beams enter the crystal and split into a fast and a slow beam, which leave the crystal at different angles. Thus, when you lay a Calcite crystal against writing or a line on paper, a perfect double image will be seen. This double image is said to double the healing properties of the stone.** You can see some amazing samples of Calcite simply by visiting a cave. Most cave formations are the result of Calcite in the rock. Calcite is very soft and dissolves quickly, thus helping in the creation of stalactites, stalagmites, arches, and a host of other cave formations.