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Explore Crystals Agate, Crystals Nature, and more!

Agate "The quartz crystals in agate is said to be cryptocrystalline - which means that it has a crystalline structure so fine that no distinct particles are recognizeable by the naked eye, nor under the microscope, with regular magnification."

Fire Opal: The most famous sources of fire opals are Querétaro and Jalisco (Mexico). The name opal is thought to be derived from the Sanskrit upala, meaning “precious stone,” and later the Greek derivative “Opallios,” meaning “to see a change of color.” Opal has been thought to have healing powers in many world cultures, and in the middle ages, it became known as the Opthalmius, or Eye Stone, and was thought to strengthen eyesight.