Assists in meditation, brings spiritual awareness, intuition and positive transformation.

 http://en.wikipedia.org/wiki/Amethyst

Apatite:

Symbolizes benevolence, good will and brotherly love, Enhances generosity and receptivity.

http://en.wikipedia.org/wiki/Chalcedony

 Brings grace and self acceptance. Activates and opens the Heart Chakra.

http://en.wikipedia.org/wiki/Chrysoprase

Carnelian:

 Increases physical energy, personal power, creativity and compassion. Protects againts Fear and envy.

http://en.wikipedia.org/wiki/Carnelian

Amplifies energy and thoughts, brings clear thinking and power, helps with relaying and receiving information.

http://en.wikipedia.org/wiki/Quartz

increases intutition and fertility, brings insight and openness to new situations.

http://en.wikipedia.org/wiki/Moonstone_%28Gemstones%29

Facilitates clean, true and spontaneous action. Brings awakening in times of change.

http://en.wikipedia.org/wiki/Opal

Emits a warm, friendly and happy energy, bringing openness and acceptance.

http://en.wikipedia.org/wiki/Peridot

A stone of love, brings calming energy and a connection to the heart.

http://en.wikipedia.org/wiki/Quartz

intensified quartz properties, particularly amplified energy, intuition, and manifestation.

http://en.wikipedia.org/wiki/Quartz

Brings clarity, balances energy and is particularly grounding and stabilizing.

http://en.wikipedia.org/wiki/Quartz

Brings clear communication, new ideas and success,
Acting through the laws of attraction and manifestation.

http://en.wikipedia.org/wiki/Topaz

Helps to diminish fear and bring independence and self-confidence. Balances the mind and Chakras (energy centers of the body).

http://en.wikipedia.org/wiki/Tourmaline

Whisky quartz:

see smokey quartz

http://en.wikipedia.org/wiki/Quartz

A great book on Gemstones is " love is in the earth" by Melody

http://www.amazon.com/Love-Earth-Kaleidoscope-Crystals/dp/0962819034/ref=pd_bbs_sr_1/102-7773861-2560962?ie=UTF8&s=books&qid=1182222690&sr=8-1