Dan Ma color stone, the hardness of 4 degrees oxidation its chemical composition is 52.65%.SiO2 0.87%, 6.63% Al, 0.06% potassium, calcium 0.21%, 0.02% manganese.Strontium higher, up to 0.1%, 50.4 tons of reserves, which contains 40%.It has two categories, one for the "cold stone" stone is relatively soft, the device, commonly known as "soft jade," a slippery feeling.Color snow white, milky white, milk yellow, brown and purple, the most suitable for small carving handicrafts.If New York Chapter, inks box, the bulk of cattle, yaks, Kuanyin and other Bodhidharma.Stone Shi particularly transparent color quality to the "crystal cold."rich and colorful "Nyima freeze" and intricate patterns of the "brain freeze profile" best.Another with "alabaster" was white, stone-like patterns containing snowflakes named.

Editor: Carolyn