These Mystic Topaz pendants are available in either oval or emerald cut & are set in sterling silver. Each pendant comes on an 18 sterling silver chain. The oval cut stones are predominately blue with a green flash. The emerald cut are predominately purple with a green flash. Mystic topaz is a relatively new variety of topaz gemstone having first appeared in the late 1990’s. Mystic topaz is white (clear) topaz that has been synthetically treated using vapor (or vacuum) deposition to produce the colorful rainbow effect it has. This chemical process involves bonding an extremely thin layer of metallic film over the top of the stone so that the interesting color effects are reflected from the crown. Mystic topaz has been called many other names including Fire Topaz, Mystic Fire Topaz, Rainbow Topaz, Caribbean Topaz, Alaska Topaz, & Alaskan Ice. Topaz is a silicate mineral of aluminum & fluorine (AlSiO) with an orthorhombic crystal structure. It is transparent or translucent & has a rating of 8 on the Mohs hardness scale. Topaz has perfect cleavage & a vitreous luster. Topaz is mined all over the world including Japan, Russia, Germany, Ukraine, Pakistan, & several locations within the United States, however, Brazil is the largest producer of topaz. For thousands of years, various cultures have used topaz in their healing practices. Caring for Mystic Topaz: Do not use abrasive materials when cleaning mystic topaz as the scratches could damage the coating created during the vapor deposition process. Mystic topaz should be cleaned with a very mild soap & water. It is suggested as much caution be used when cleaning mystic topaz as is done when caring for pearls. If treated properly mystic topaz will keep its brilliant colors for a lifetime. Disclaimer: Metaphysical & alternative crystal healing energy & properties are not to be taken as confirmed advice. Traditional, ceremonial, & mythological gemstone lore is collected from various resources & does not represent the sole opinion of The ChayKray Healer. This information is not to replace the advice of a treating physician. Should you have any medical conditions, please see a licensed medical practitioner. The ChayKray Healer does not guarantee any claims or statements of healing or astrological/zodiac powers & cannot be held liable under any circumstances. The information presented is intended for educational purposes only. These statements have not been evaluated by the FDA & are not intended to diagnose, cure, treat, or prevent disease. Individual results may vary, Before using any herbs, supplements, elixirs or tinctures it is always advisable to consult with your own physician and/or health care provider. Please research the herbs to make sure they are safe to use in the manner you plan to use them. Some herbs are not safe for use when pregnant, nursing, with certain medical conditions & diagnosis, or with certain medications. Always consult a physician before consuming herbs. Please