Sunstone
About
Sunstone is a member of the feldspar family, recognised for its warm, glittering appearance. Its characteristic shimmer, known as aventurescence, is caused by light reflecting off tiny inclusions of copper or hematite within the stone. Sunstone’s colour ranges from pale yellow and orange to red, pink, and brown. It is often translucent to opaque, with the best-quality stones showing a vibrant play of colour and internal sparkle.
Birthstones & Anniversaries
Although not a traditional birthstone, sunstone is often linked to the zodiac signs of Leo and Libra due to its association with vitality, leadership, and balance.
Crystal Healing Energy
The overarching theme of sunstone is joy and empowerment. Sunstone carries the energy of the sun, bringing warmth, vitality, and positive energy. It resonates strongly with the solar plexus chakra, promoting confidence, self-worth, and personal power. Sunstone’s uplifting energy helps to dispel negativity and boost optimism, making it an ideal stone for manifesting joy, creativity, and success. Its radiant energy encourages freedom and independence, making it perfect for those seeking motivation and leadership in their personal and professional lives.
Facts
Aventurescence: The shimmering effect seen in sunstone is due to the presence of copper platelets or hematite inclusions.
Oregon Sunstone: A particularly famous variety found in the United States, which is prized for its reddish and golden hues.
Science
Mineral: Sunstone (Feldspar)
Crystal System: Triclinic
Chemistry: (Ca,Na)(Al,Si)₄O₈
Colour: Yellow, orange, red, pink, brown, occasionally with flashes of gold or green
Refractive Index: 1.537 to 1.547
Birefringence: 0.007 to 0.013
Specific Gravity: 2.62 to 2.65
Mohs Hardness: 6 to 6.5
TreatmentsMost sunstones are untreated, but some lower-quality stones may be enhanced with copper diffusion.
SyntheticsNone known.
ImitationsSunstone can be imitated by glass or other man-made materials that attempt to mimic its sparkling effect, but these lack the natural inclusions that give real sunstone its depth and texture.
Why We love Sunstone
AventurescenceThe unique, glittering sparkle of sunstone sets it apart from other gemstones.
warm coloursFrom warm yellows to deep reds, sunstone offers a stunning palette of colours.
durableWith a hardness of 6 to 6.5, it is suitable for jewellery and decorative use.
