Citrine Mohs hardness 7, Specific gravity 2.65, Refractive index 1.544-1.553. Citrine is a variety of quartz whose color ranges from a pale yellow to brown. Darker colors are more highly prized, including medium golden orange ("Rio Grande" citrine) and dark sherry-colored ("Madeira" citrine). Citrine is actually naturally heated amethyst and smokey quartz. It is nearly impossible to tell cut citrine from yellow topaz visibly, but they differ in hardness. Citrine has ferric impurities, and is rarely found naturally. Most commercial citrine is artificially heated amethyst or smoky quartz. Brazil is the leading producer of citrine, with much of its production coming from the state of Rio Grande do Sul. The name is derived from Latin citrina which means "yellow" and is also the origin of the word "citron." Sometimes citrine and amethyst can be found together in the same crystal and is referred to as ametrine. CITRINE - augments happiness, prosperity, generosity, creativity, pleasure, protection, strength, alignment, confidence, stability, moderation, energy, comfort, career success, truth, goodness, warmth, digestion, assimilation, enjoyment of life and spiritual growth. This is a stone of success in all walks of life. Citrine - Self-esteem, joy, clear thinking, activates solar plexus, "merchant's stone", brings more cash to cash drawer. Citrine - carries the healing properties of the sun. It expands the auric field, filling it with light and clearing away any lingering etheric toxins. Citrine is also a wonderful manifestation crystal by motivating you into taking action. It brings optimism and cheerfulness. Citrine is a good stone for aligning all the chakras. It focuses on balancing the solar plexus chakra, which in turn integrates the lower and higher chakras. The Twelve Tribes of Israel In Exodus 28:17-21, specific gemstones were associated with the twelve tribes of Israel. People of Jewish heritage may wish to select their birthstones based on tribal names. Historians have complied several lists of which stone goes with each name. Citrine is associated with the tribe of Gad. November modern birthstone: topaz or citrine. Citrine care: Wash with warm soapy water, Avoid harsh detergents, Ultrasonic cleaning is usually safe, Never steam clean.