Stone: Black Onyx
Frame Material: Solid Genuine .925 Sterling Silver.
Shape: Tiny Faceted Heart Shape on both sides.
Measurement: 10mm long, 7mm wide, stone size is 5.5x6mm.
Weight: Ave. 0.3gms
These stones are known as hydrothermal quartz, which contains the same physical, chemical and optical properties of natural stone. For further information and details regarding this process, see the AZ Findings Blog: http://www.azfindings.com/blog.
Pictures only show the shape of the product, for actual size please read the measurement.