Molecular formula :
nature : chemical composition, age similar to the (micro) hit the glass change the distribution. If the O-subsets scatterable, blow glass change the distribution area accounts for one-tenth of the earth's surface area. Ivory Coast glass covering 4 × permafrost; Central-glass distribution in the Czech Republic in southern Bohemia and Moravia southwestern two discrete areas; North American glass-distribution in the United States, Texas, Georgia and Massachusetts and other places; Haiti-strike change in the distribution of glass Northeast Mexico, Haiti and other places.
Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data".