The best sources are Hot Springs, Arkansas, England, Switzerland, India, Brazil, and Madagascar. Brazil is known for large crystals; the largest ever found weighs over 44 tons.
Quartz (silicon dioxide) is one of the most abundant, yet the most varied mineral on Earth, forming the basis for many types of semi-precious stones including agate, onyx, and tigereye. Macrocrystalline (large crystal) quartz appears in a variety of semi-transparent colors. Amethyst is purple, citrine is orange to yellow, rose quartz is pink to reddish pink, smoky quartz is gray to brown, milky quartz is cloudy white, and rock crystal is clear quartz. Quartz occurs in hydrothermal veins, and large pockets of quartz are known as cathedrals.
Clear quartz is widely used as a gemstone, sometimes as an alternative to diamond. It is often used for ornamental carvings such as crystal balls and fine chandelier ornaments.
Inclusions of other minerals can have some spectacular effects. Needles of black tourmaline (tourmalinated quartz) or golden rutile (rutilated quartz) are very popular ornamental stones.
Birthdays & Anniversaries:
Clear quartz is the traditional birthstone for April.
The name quartz most likely comes from the German word quarz, though it has also been attributed to the Saxon word querklufterz, meaning "cross vein ore." The word crystal comes from the Greek word “krytsallos, which means “frozen.” Ancient Roman naturalist Pliny the Elder believed quartz to be permanently frozen ice, because it was found near glaciers in the Alps. He figured out that quartz crystals can split light into a spectrum of colors. Quartz is also a type of piezoelectric crystal that creates electricity; it was used in the late 1800's in phonographs, generating electrical voltage from the mechanical movement of the stylus on the record.
Quartz crystals are probably the most widely used for healing and spirituality, and they are known to be versatile multi-purpose healing stones. Clear quartz is used to stimulate the immune system and bring the body into balance. A yin or androgynous stone, it is said to work well with all the chakras and to align them.
Quartz, in general, is utilized to help with relaxation, stress reduction, concentration, energy amplification, and blocking negativity. Used in meditation, it is used to enhance the psychic abilities and block distractions.