Best thing to do is to think about what you need the crystal for and then consult a correspondance table. I use selenite on a daily basis because its properties help me to keep a positive outlook. But if you already have a positive outlook then that might not be the stone for you. Its a very personal thing. Clear quartz is the best all rounder and can be used in place of some of the more expensive crystals. (I mean - good luck with buying diamonds and sapphires - lol)
I didn't write this, its copied and pasted from somewhere and has found its way into my book of shadows. But its a good basic guide on the properties of some of the popular crystals.
Courage, strength, love, protection.
Luck, love, spiritual transformation, joy.
Success, joy, self-expression.
Courage, psychic energy, dreams, healing addictions,
peace, happiness, love.
Courage, purification, peace, psychic awareness, selfexpression.
Money, luck, mental agility, visual acuity, peace,
Psychic energy, dreams, divination, healing, concentration,
Energy, love, healing, psychic awareness, protection.
Courage, strength, victory, wealth, self-confidence,
business and legal affairs.
Centering, grounding, purification, money, peace,
Courage, sexual energy, verbal skills, peace, stops
jealousy, stops apathy, stops fear and rage.
Verbal skills, healing, compassion, calming, aids
Wisdom, peace, love, communication, vitality.
Prosperity, luck, happiness, friendship, protection,
Psychic powers, protection, creativity, sexual energy,
Courage, strength, healing, protection, spirituality,
mental and sexual abilities.
Prosperity, mental and psychic abilities, dreams,
meditation, visual acuity, love, peace, balance.
Strength, physical energy, healing, protection, purification,
Fertility, childbirth, meditation, freedom of spirit,
psychic ability, dreams, astral travel.
Grounding, calming, healing, divination, intuition,
physical strength, aids restful sleep.
Healing, protection, wisdom, prosperity, love, long
life, fertility, courage, peace.
Healing, protection, health, beauty, energy.
Creativity, communication, peace, balance, relaxation,
Courage, joy, love, fidelity, psychic abilities, protection,
healing, beauty, prosperity.
Peace, spirituality, physical strength, luck, protection,
psychic ability, emotional balance, prevents nightmares.
Power, energy, protection, love, peace, success in
business, vision quests, gardening.
Psychic abilities, mental and emotional balance.
Grounding, love, divination, sleep, gardening, protection,
youth, harmony, peace, travel.
Grounding, divination, protection, prevents negativity.
Emotional balance, self-control, binding, protection,
Beauty, prosperity, luck, power, psychic abilities, visual
acuity, emotional balance.
Protection, prosperity, sleep, health, emotional balance,
Energy, peace, calm, love, mental activity, emotional
Peace, mental clarity, memory, confidence.
Love, peace, happiness, healing.
Prosperity, power, courage, integrity, joy, prevents
Psychic abilities, inspiration, love, meditation, peace,
healing, power, prosperity, protection.
Healing, directing and absorbing energy, altered states.
Healing, meditation, wisdom, calm, grounding, stress
Protection, energy, health, passion, sexuality.
Courage, prosperity, protection, energy, luck, judgment,
common sense, honesty, divination, eases depression.
Protection, healing, dieting, prosperity, love, emotional
balance, tranquility, creativity.
Love, friendship, prosperity, business, peace, sleep,
energy, courage, protection, inspiration.
Courage, protection, prosperity, luck, friendship,
healing, communication, happiness, emotional balance,
Protection, beauty, love, peace, sexual energy, healing,
mental alertness, emotional balance.