Aventurine Gemstone Information
About Aventurine - History and Introduction
Aventurine is a variety of chalcedony quartz characterized by its translucency and sparkly metallic inclusions. Glittery inclusions are typically composed of Muscovite mica, which usually result in medium to dark green Aventurine stones with a silvery green or blue sheen. The metallic inclusions give Aventurine Quartz a unique sparkling iridescent effect, known as Aventurescence. In addition to Muscovite mica, Hematite or goethite may also be included which also yields iridescent properties.
Aventurine typically ranges from light to dark green color. Aventurine's color is caused by trace elements of fuschite in otherwise colorless quartz. Fuschite is a chromium-rich variety of muscovite. Aventurine is often so heavily included with fuschite, that it is technically defined as a rock and not a mineral. Despite this technicality, Aventurine is still classified as quartz by most, considering fuschite only as an inclusion within quartz.
Aventurine's unique optical phenomena of 'Aventurescence' ranges in intensity from weak to intense. The level of intensity depends on the density and size of metallic inclusions. The body color of Aventurine also varies depending on inclusions. In fact, most Aventurine quartz appear banded and exhibit noticeable lighter and darker color zones. Aventurine has a grainy texture in rough state, but displays an attractive, soft and dull vitreous luster when polished. Aventurine Quartz is sometimes confused with Aventurine Feldspar, but feldspar occurs orange to red and have a higher level of transparency, which makes them easily distinguishable from one another. Aventurine Feldspar is now commonly referred to as 'Sunstone', leaving the name 'Aventurine' to refer primarily to the quartz variety.
Quartz has been used for centuries as gemstones and other ornamental objects. Some of the earliest known primitive tools were composed of quartz and discovered in Ethiopia's Omo Valley. Many of the tools date back more than two and a half million years and were found to be constructed from Aventurine Quartz. Aventurine is a superior material for tool-making because of its excellent hardness, and it has an isotropic brittleness that allows them to be shaped relatively easily with dexterity.
Identifying Aventurine Back to Top
Aventurine can typically be distinguished and identified by color and the presence of 'Aventurescence'. Aventurine quartz has a unique occurrence, hardness, luster, conchoidal fracture, refractive index and specific gravity.
Aventurine may be easily confused with malachite and jade, but only by appearance as both are much softer than Aventurine Quartz. The term 'Indian Jade' is often incorrectly applied when referring to Aventurine.
Aventurine Origin and Gemstone Sources Back to Top
Aventurine quartz can be found in many locations around the world. Some of the most popular sources include Brazil, Chile, India, Austria, Russia and Tanzania.
Buying Aventurine and Determining Aventurine Gemstone Value Back to Top
Aventurine Gemological Properties: Back to Top
Please refer to our Gemstone Glossary for details on gemology-related terms.
Aventurine: Varieties or Similar Gemstones: Back to Top
Aventurine Quartz is one of the many quartz gemstones available today. Quarts is the second most abundant mineral on Earth. In fact, approximately 12% of Earth's crust is composed of quartz. There are a handful of gems which may are similar to Aventurine, including sunstone, malachite, variscite, chrysoprase, jade (Indian Jade), chalcedony and amazonite. However, most of these are easily distinguished from through simple scratch testing and inspection of colors or inclusions.
Aventurine's iridescent property of "Aventurescence" is usually enough to identify and distinguish it amongst other gemstones. Goldstone is an artificial glass imitation that is commonly used as an alternative for Aventurine Quartz.
Aventurine Gemstone Mythology, Metaphysical and Alternative Crystal Healing Powers Back to Top
Aventurine is known to be a stone of luck. Green Aventurine is thought to hold the most power compared to other colors available. Aventurine is thought to stimulate dreams and have a positive effect on psychic ability. It is known to aid in strengthening sense of self-being and give its wearer a positive outlook towards life. Aventurine can ease anxiety and emotion. Aventurine will help one make decisions from the heart, stimulating creative inspiration and giving the courage to live your truth around others (light to dark shades of green), it is a comforter and supporter as well as a balancing stone.
Pure green Aventurine has the strongest healing energy. Many believe that it has the capability to calm a troubled spirit and bring about inner peace. In summary, Aventurine symbolizes tranquility, patience and creativity. Physically, Aventurine is thought to be powerful with psychotherapy. It is an ideal stone for treating heart and respiratory disorders. Aventurine is also believed to help improve eyesight and vision. It is associated with the planet Mercury and also the 6th and 7th Chakra (Brow and Crown Chakra). Aventurine is a Stone of Cancer and very popular for those under the sign of Taurus and Sagittarius.
Aventurine Gemstone and Jewelry Design Ideas Back to Top
Aventurine is popular for jewelry-making, especially owed to its excellent hardness and durability. Since it most often occurs opaque and not transparent, they often cut into beads and cabochons. Aventurine is ideal for any type of beaded or stranded jewelry, including necklaces, bracelets and ornamental carvings. Some popular ornamental carvings include bookends, animal cameos and figurines. Aventurine is ideal for use in gemstone cabochon rings and pendant jewelry designs.
Note: Buy colored gemstones by size and not by carat weight. Colored stones vary with size-to-weight ratio. Some stones are larger and others are smaller in weight comparison to diamond.
Gemstone Caring and Cleaning for your Aventurine and Gemstone Jewelry Back to Top
Aventurine can be easily cleaned with warm soapy water and a soft cloth or brush. Aventurine Quartz is considered very durable and has relatively good hardness (7 on Moh's scale), but care should still be taken around other materials, because there are many other gem types that are harder than quartz. As with almost all gemstones, you should avoid using harsh household chemicals when caring or cleaning your Aventurine gemstones. Avoid prolonged exposure to extreme heat as it may cause damage to the gemstone.
When storing Aventurine, store them inside a fabric-lined box or wrapped in a soft cloth. Aventurine should be stored separately away from other types of gemstones to prevention damage or scratches. It is best to remove any jewelry before engaging in any strenuous physical activity, such as exercise or sports.
- First Published: July-18-2013
- Last Updated: February-13-2014
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