Pietersite Pendant square is also called birefringence and

is also called birefringence and is also responsible for the incredible displays of rainbows inside many optical calcite pieces

4 kg (600 lbs) and a second specimen of 51 kg (112 lbs) was discovered about 20 meters away in October 1967

it is sometimes thought that the material is synthetic or artificially enhanced

Stichtite's vivid colors and association with serpentine make it a valued collector's item and occasionally used in jewelry as an ornamental stone

5x2x1 inches

Pietersite Pendant square is also called birefringence andPietersite Pendant Approx. Dimensions: 42x25x7 mm This pendant is made with . 925 Sterling Silver. Chain is not included. Pietersite is a captivating and relatively rare gemstone that is known for its stunning play of color and chatoyancy (cat's eye effect). It is a type of chalcedony, a microcrystalline form of quartz, and is distinguished by its rich mixture of colors and unique fibrous structure. Pietersite is often cut and polished to showcase its