Citrine is Amethyst which has been irradiated, often this is done naturally but it is known that "man" has taken it upon himself to do this artificially and it is very difficult to tell the difference! As a rule of thumb, a very expensive piece is probably natural, but this can not be assumed to always be the case!
Citrine is often referred to as "The Merchant's Stone" with many people keeping a piece in their purses or tills!
Citrine is considered as one of the crystals which "self cleanses", but we cleanse ours along with all our other crystals.
Zodiac signs: Aries, Gemini, Leo, Libra, Sagittarius, Virgo
Chakras: cleanses and re-energises all chakras
Solar System: Earth, Mars, Mercury, Sun
Issues/Intentions: Abundance (known as the “Merchant’s Stone), balance, clarity, dysfunctional groups or families, goals, optimism, rebirth/renewal, release (especially past emotional wounds and negative energy), self-esteem, self-confidence, self-work, troublesome times, willpower.