Unique rare natural Petroleum Quartz(1.13ct,SI,USA) hand set in solid sterling silver. This stone is a double terminated, making it also a Herkhiemer Diamond. It's exceedingly rare to find a Herkhiemer Diamond with the Petroleum inclusions. An excellent collectors piece.
Golden enhydro quartz, also known as petroleum quartz or enpetro quartz, is one of the most extraordinary forms of quartz crystals.
Petroleum Quartz is a type of quartz that contains trapped fluid inclusions, often trapped for millions of years. Petroleum Quartz is usually clear and colorless, although the fluid inclusions can alter the color and clarity of the quartz. In 1921, quartz was discovered to be piezoelectric, meaning it will generate an electric charge and vibrate at precise frequencies. These frequencies are so precise that quartz crystals are used in extremely accurate time-keeping instruments, stabilizing radio and television signals, cellphones and GPS equipment. Another astounding feature of golden enhydro quartz is the petroleum inside these gems will fluoresce when exposed to ultraviolet (UV) light. Fluorescence is a natural phenomenon that occurs in several minerals and gemstones. When it occurs in golden enhydro quartz it's extra special because quartz doesn't fluoresce on its own. It's only through the petroleum inclusions that these gems are able to glow from within. As a durable gems, ranking 7 on the Moh’s Scale of Hardness, golden enhydro quartz can be cleaned with warm water.