Sunstone is a plagioclase feldspar, which when viewed from certain directions exhibits a brilliant spangled appearance; this has led to its use as a gemstone. It has been found in Southern Norway, and in some United States localities. It is the official gemstone of Oregon.
The optical effect appears to be due to reflections from enclosures of red haematite, in the form of minute scales, which are hexagonal, rhombic or irregular in shape, and are disposed parallel to the principal cleavage-plane.
These enclosures give the stone an appearance something like that of aventurine, whence sunstone is known also as "aventurine-feldspar". The optical effect called shiller and the color in Oregon Sunstone is due to copper. In the middle part of this crystal, it sparks a lot, and usually has a dark color in the middle, and the color becomes lighter as it becomes the outer part.

Sunstone in jewelry:

Sunstone is linked to luck and good fortune. It clears and energizes all the chakras. Sunstone instills good nature, heightens intuition and allows the real self to shine through happily. It dissipates fearfulness, alleviates stress and increases vitality. Encourages independence and originality. Especially helpful to those who have difficulty saying “No” to others. Sunstone facilitates self-empowerment, independence and vitality. It acts as an antidepressant. Increases self-worth and confidence. Encourages optimism and enthusiasm. Stimulates self-healing powers. Sunstone treats chronic sore throats, reduces stomach tension and relieves ulcers.

Sunstone was associated with the Sun during the Renaissance because of its sparkling orange-gold hue. It was used by magicians to call upon the influences of the sun. It is a protective stone. Symbolically, sunstone is linked to moonstone. Carry the two stones together to bring the influences of the Sun (Healing, Protection, and Success) into harmony with those of the Moon (Love, Peace, Spirituality). Sunstone is worn to: Give you extra energy when you are ill or under stress, Stimulate sexual arousal and increase sexual energy Increase self-healing power Promotes harmony among the organs functions. Sunstone stimulates your personal power of attraction.

Sunstone History and mythology:

Sunstone is an ancient gem. It has been found in Viking burial grounds. It is thought that Sunstone may have aided in navigation much like Iolite gems did. Sunstone produce two types of material, one that is cut into cabochon or made into beads like opal or jade and the other is Gems quality and can be faceted like a diamond or sapphire.