The following is a small list of some crystals. It is in no way complete as to the vast variety of minerals that crystallize, or to the Magical properties represented by this stones. Different traditions and beliefs hold various values on the Medical and Magical properties of crystals this list is but a example of one set of beliefs.

AGATE: All agates enhance other stones.
AGATE, MOSS: Decreases depression, restores mental balance.
AGATE, PICTURE: Sharpens mind.
ALEXANDERITE: Increases self-esteem.
AMBER: Improves decision making.
AQUAMARINE: Improves expression.
BLOODSTONE: Courage, helps self-actualization.
CHRYSOPHASE: Tranquilizes, sharpens perception.
CORAL: Eases depression, dispels nightmares.
DIAMOND: Eases insecurity.
DIOPSIDE: Relieves insecurity.
EMERALD: Aids working closely with others.
FLUORITE: Increases intuition.
GARNET: Enhances imagination.
HEMATITE: Grounds, protects.
JASPER: Increases endurance, courage.
LAPIS LAZULI: Improves communication.
MALACHITE: Dispels stress, anxiety
MOONSTONE:. Improves intuition and receptivity.
OBSIDIAN: Wards off negativity, grounds.
OPAL: Promotes love, joy, emotional balance.
PEARL: Reduces over-sensitivity, peaceful.
PERIDOT: Extends patience.
PYRITE: Dispels anxiety.
RHODOCHROSITE: Strengthens self identity.
QUARTZ, AMETHYST: Guards against excess.
QUARTZ, CELESTITE: Calming influence.
QUARTZ, CITRINE: Reinforces self-confidence.
QUARTZ, ROSE: Tranquilizes, calms.
QUARTZ, SMOKY: Balances emotions.
QUARTZ, WHITE: Promotes healing, an energizer.
RUBY: Increase confidence, leadership skills.
SAPPHIRE; Mood elevator, improves communication.
SODALITE: Fosters harmony and communication.
TIGER'S EYE: Balances material and physical needs.
TOPAZ: Relaxes, balances.
TOURMALINE, BLACK; Protective, guards against bad vibes.
TURQUOISE: Healing, protection.