This is an extra high quality tumbled Aquamarine and has a bright blue and blue-green coloring.  This quality of aquamarine has a brighter color and stronger vibration than the commercial grade Tumbled Aquamarine.   Aquamarine is a type of beryl with a prismatic crystalline structure.  Carried by seamen in ancient times to protect against drowning, cooling Aquamarine is a stone of courage and protection.Aquamarine is used most often with the Throat Chakra to enhance spiritual communication and to clear communication blocks.  Aquamarine helps to promote verbal self-expression.  Work with Aquamarine to help overcome judgment of others and encourage tolerance. Aquamarine is often used to enhance one's intellectual prowess, helping one to think quickly to come up with solutions on the fly.  Many also use Aquamarine to help with reasoning and promote logic.  Carrying Aquamarine on one's person can help to remind the individual to be prepared for most any scenario that could be encountered, given the current set of circumstances.  Aquamarine can also facilitate the releasing of old patterns of behavior that no longer serve, and can actually inhibit one's growth.  Meditating with Aquamarine can bring new insights from the higher self to be applied in daily life.Primary Chakra:  Thymus, Throat, Third EyeAstrological Sign:  Gemini, Pisces, AriesChemical Composition:  (Be3 Al2 Si6 O18) Beryllium Aluminum Silicate* Pictures represent variation in color quality.  Please see product name for the actual quantity for this item.