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          News
          New fire proof board
          Usage of the pumices in
          News: The harm from the
          The 16th International A
          Skytop on WaterEx Beijin
          Profession
          Knowledges of the obsidi
          Radiation proof characte
          Volcanic rock stone mate
          Types of the volcanic ro
          Characteristics of the v
          Volcanic rock biological
          Current:Home- The only raw obsidian base in China
          There are kinds of many classes of the gems from the mines of Skytop, including 300,000 standard cubic meters proved reserves of the obsidians. Obsidian is one of the igneous rocks, made of SiO2 not crystal. Obsidian is the colloidal substance by amorphous and microcrystalline substance. Obsidian is formed by rapid cooling of lava, so it is hard to crystallized, and it is an amorphous gem, with a shell type fracture. Obsidians may be single color, or with fringes or with spots. The crystallite and trichite are the characteristics. Some are nonmetallic luster, some contain the “Snow” made by the bubbles and crystals inside, and some show the rainbow colors. Rainbow Obsidians are the most famous ones with the rainbow colors, and some contain ellipse fringes called single eye obsidians or double eyes obsidians. Rainbow single eye obsidians or rainbow double eyes obsidians are the most valuable because of the low productions and the beautiful appearance.

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