Although not technically a gemstone, it nonetheless comes from the Earth and carries powerful metaphysical properties. It's many bright shining colors can be used to affect all main chakra's of the body, centering and bringing them into alignment. Especially useful in cleansing old emotions from your body. Meditating with this can help let go of the past and accept the present. It also can grant magickal crativity, useful when writing your own spells.
Agate
Elemental Affinity: Air
Comes in a wide variety of colors, and such has a wide amount of issues. Generally, this stone is used as a luck and wealth stone, and also as a mild protection stone from negative energies. Green agate is better suited for nature spells, Blue for healing, and Pink for love spells. Linked to the throat Chakra, meditating with this stone can help to enhance the holder's communication skills, and boost their confidence.
Alabaster
Elemental Affinity : Air
A white, semi transparent stone. The white color is often used to symbolise purity in magickal workings and spells. Working with this stone can help ease anger with you or an entire household.
Amazonite
Elemental Affinity : Water
A stone symbolizing truth and honesty to one's self. Meditation with this stone can help one learn to speak from the heart and and respect for yourself. Also useful as a calming stone, just having this stone on your person can help balance out your mood and help maintain a healthy attitude. Also a useful stone for psychic gifts, such as clairvoyance and empathy. Helps to open the 3rd Eye Chakra, since it has links to the mind.
Amber
Elemental Affinity : Fire
A stone symbolizing the Sun's energy. Helps with fertility and protection, and getting in touch with your other side of yourself. For guys, it can help you become more caring, and getting in touch with your femine side, and with females, helps to be more forceful and persistent, essentially balancing out a person's qualities and traits. Good for overall self betterment. Also helps to prevent impulsive decisions, and combats anxiety and indecisiveness.
Amethyst
Elemental Affinity: Air
A stone promoting a clear mind and helps to protect you from unwanted influences. A useful stone for helping with breaking addictions. Also a very powerful protection stone, as it turns away negative energy from outside sources. Also helps to heighten the holder's spiritual awareness, useful if you wish to get in touch with your Spirit Guide, or if you work with spirits in anyway.
Apache Tear Obsidian
Elemental Affinity: Earth/Nature
A stone that helps to heighten the holder's awareness to the Astral and Etherical planes. Meditating with this stone before attemping to Astral project can make the process easier. Also helps to increase your sensitivity to magickal energy and workings.
Apophyllite
Elemental Affinity: Air
A very powerful cleansing stone. Used to cleanse other stones in place of more traditional methods, such as using sea salt or Lunar Cleansing. Helps to magickally strengthen your bond with your Spirit Guide or Totem Animals. A very useful stone in any path.
Aquamarine
Elemental Affinity: Water
A stone holding the healing powers of the sea. The name literally translates into "sea-water" . Helps to overcome strong emotions or past experiences, as well as soothing your nerves. Also a good stone for divination, heightening the bearer's ability to interpret knowledge of the future.
Azeztulite
Elemental Affinity : Air
A very rare stone, so far being found scarcely across America. Has powerful potential for opening a person's awareness to the Astral Plane, and also blurring the lines between the planes, making Astral travel easier. Also helps to promote an increase in memory and knowledge, as well as helping to know what to do with what you learn. Also promotes awareness of one's self, helping to come with terms in ones own life.