process: high-progress numerical control crystal precise cutting, exclusive core multi-layer high vacuum plating

advantages: environmentally friendly lead-free crystal, excellent cutting workmanship

uses: nail art, jewelry accessories, clothing accessories, mobile phone cases, DIY works, etc.

properties

① piezoelectric effect: under the action of mechanical force (pressure or tension), both ends of the crystal single crystal will generate electric charge, its electric quantity is equal but the sign is opposite. In industry, colorless, defect-free, non-twin crystal is often used for piezoelectric quartz.

② Thermal conductivity: better than glass, but worse than most minerals, and has directionality.

③ hot melt: crystal is difficult to melt, melting only when the temperature reaches about 1715 ℃, and melting point can be reduced when there are inclusions.

④ Boiling point: 2477 ℃

⑤ Chemical stability: very good, only dissolved in hydrofluoric acid at room temperature, not dissolved in other kinds of acid and alkali. It can be dissolved in sodium carbonate solution under high temperature and high pressure.

⑥ solubility: under normal temperature and pressure, crystal insoluble in water.