Man has been using crystals for healing since the days of Atlantis, ancient civilizations such as Mayan and Hebrew. The Native American cultures also use them. The use of stones and crystals still continues today.
Crystals are not just for healing. They have been used during meditation, in planter pots to aid the growth of plants, to purify water, to cleanse food before eating.
AQUAMARINE: heart, immune system, release anxiety and fear
CARNELIAN: kidneys, gall bladder, increase confidence and assertiveness
CITRINE: food disorders, liver, intestines, reduce fear and depression
DIAMOND: increase personal clarity, trust, love
EMERALD: heart, blood, childbirth, lift depression and insomnia
JADE: immune system, cleanse blood, increase courage, emotional balance
LAPIS: anxiety, shyness, hearing, pain
MALACHITE: stomach, liver, kidney stones
ROSE QUARTZ: love, beauty, kindness, self esteem
RUBY: infections, blood clots, stimulate circulation
SAPPHIRE: reduce fevers and inflammation, increase mental clarity
These are only a few of the healing properties of some stones. Check online or at your local bookstore for "The Crystal Bible". A wonderful resource that includes placement and use of crystals.