Crystal jewelry is jewelry made of crystals.
Crystal is a quartz crystal with high transparency and good crystal shape. Crystal belongs to the large "family" of quartz crystals. The chemical composition is silicon dioxide, the chemical formula is SiO2, and it may contain trace impurities such as iron, manganese, magnesium, aluminum, and titanium. It is a trigonal crystal system. The English crystal of crystal is derived from the Greek word Krystallos, which means "white ice", which vividly depicts the clear and thorough appearance of crystal.
Common crystal varieties on the market include natural crystals, artificial color-changing crystals, and artificial synthetic crystals.
Gemstones similar to crystal are: topaz, tourmaline, beryl, and spodumene.
Natural crystals include colorless crystal, topaz, amethyst, smoky crystal, etc. Artificial color-changing crystals include blue crystal, orange crystal, and purple crystal.
Synthetic crystals include colorless crystals and purple crystals. Since their generation conditions are basically the same, it is not easy to distinguish.
The difference from similar gemstones is mainly in terms of density: topaz 3.59g/cm3, tourmaline 3.06g/cm3, spodumene 3.18g/cm3, beryl 2.8g/cm3, crystal 2.66g/cm3, put them in tribromomethane ( 2.95g/cm3), crystal and beryl float, topaz, tourmaline and spodumene sink.
Natural colorless crystal is crystal clear and transparent, the crystal contains gas-liquid inclusions, the inner wall of the bubble is uneven, the luster is soft, the purity is average, and the density is small. The natural amethyst is uneven in color, distributed in irregular flakes, and also contains gas-liquid inclusions.
The color of the artificially changed crystal is uniform, and no irregular flaky chromophores can be seen in the crystal.
The characteristics of artificial synthetic crystals are basically the same as those of natural crystals. The color of synthetic crystals is uniform, and the center of the crystal has a lamellar daughter crystal nucleus, which is uniform in color and small in hardness and density.
