Body and Soul Yoga
Mooladhara
(aka: Muladhara) Mool = root, Adhara = place
Mantra: Lam
Colour: Fiery red
Crystals: Bloodstone, Garnet, Ruby, Red Coral, Agate
Swadhistana
(aka: Base/sacral chakra) Swa =self, Sthan =dwelling
Mantra: Vam
Colour: Orange
Crystals: Carnelian, Moonstone, Amber
Manipura
(aka: Solar plexus chakra) Mani = gem, Pura = city
Mantra: Ram
Colour: Yellow or Golden
Crystals: Tiger's Eye, Citrine, Yellow Topaz
Anahata
(aka: Heart chakra) Anahata = unstruck
Mantra: Yam
Colour: Green, pink or gold
Crystals: Emerald, Rose Quartz, Green Jade, Pink Tourmaline
Vishuddhi
(aka: Throat chakra) Shuddhi = purification Va = enhances
Mantra: Ham
Colour: Pale blue, Silver, Greenish Blue
Crystals: Aquamarine, Turquoise, Lapus Lazuli, Blue Sapphire
Ajna
(aka: Third Eye chakra) Ajna = command
Mantra: Ksham
Colour: Indigo, yellow, violet
Crystals: Lapus Lazuli, Indigo, Sapphire, Amethyst, Diamond
For an excellent and in-depth article on the chakras:
Sahasrara
(aka: Crown chakra) Sahasrara = one thousand
Mantra: OM
Colour: Violet, White, Gold
Crystals: Amethyst, Rock Crystal, Diamond