Nature rock crystal quartz stone
Crystal (Quartz Crystal) is a colorless and transparent quartz
crystal minerals large. Its main chemical ingredient is silica.
Chemical formula SiO2. Crystal colorless, purple, yellow, green and
smoked like. Shiny glass. Transparent to translucent. Hardness 7.
Brittle. No cleavage. Crystal Density: 2.56-2.66 g / cc.
Crystal is a substance with ordinary sand "with a womb," the. When
the time is perfect crystalline silica crystal; after dehydration
is agate gelled silica; colloidal silica water after solidification
become opal; silica grains at less than a few microns, on the
formation of chalcedony, flint, secondary quartzite.
Pure colorless and transparent quartz crystal is a variant.
Our main minerals, rocks, fossils, semi-precious stones, etc all
kinds of specimens as well as a variety of original rock of mineral
raw materials, all kinds of stone crafts. Our products are from the
original natural stone, so there are little differences between
various stone, because nature is not a natural stone is the same.