(ps this post was originally made by thechamomilewitch on tumblr!)

Tumbled - Even, gentle energy.
Raw - Strong, sporadic energy .
Sphere - Even energy, can be used as a window to the past and future.
Square - Grounding, meditating.
Pyramid - Manifestation, focused energy, removes blockages. Artificially shaped pyramids enhance and focus the inherent properties of the original Crystal used.
Cluster - Charges and cleanses other crystals, purifies, fosters protection, cooperation, purification, harmony, friendship and intimacy.
Geode - Grounding, healing. Can hold and amplify energy within themselves, diffusing the energy softly. Wonderful for protection, spiritual growth, breaking addictions and overindulgent personalities.
Abundance - Fosters prosperity and well-being, success, good fortune and all good things in life
Egg - Healing, fertility, balance. Used in reflexology, zone-therapy, acupressure, shiatsu and aura reading.
Point - Concentrated and direct energy. Used in healing layouts.
Generator - Amplifies and charges. Fosters wisdom, focus, magical power and the wisdom to use the crystal in a proper manner.
Twin - Balance. According to Judy Hall, this Crystal can be programmed to attract a soul partner – a “Twin Flame”.
Double Terminated - Transforms negative energy into positive. Great at breaking old patterns like overcoming addictions. Placed on the third eye chakra they help activate our natural telepathy.
Palm - Grounding, stress reduction when rubbed (worry stone)
Isis - Feminine energy. For men, the Isis crystal will help to become more in tune with their feminine side and to become more aware of the aspects in women that they find troubling. Women can work with the Isis crystal to help them regain some of that power and energy that society has taken away from them.
Drusy - Charging, relaxation, harmony. Encourage ideas or thought forms ready to spring forth and grow.
X Crystal - Ability to bring female/male energies into harmony, and can be used when a well-balanced decision is needed.
Y Crystal - Balance female/male energies and are good tools for developing natural intuition and telepathy.