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Vesuvianite--- a new kind of decorative material The vesuvianite in southern china is a kind of basalt with about 10 percent gas holes. It is hard and gray, needn¡¯t polish. As a kind of ideal decorative material, it makes the square, the tourist attraction, or the courtyard simple and unsophisticated, serious and solemn. It also can absorb the sound and dust indoor. The magma was brought to the surface of the earth when the volcano erupts, without the pressure; it cools quickly and form many gas holes. The smaller gas holes, less than a millimeter, are regular, on the contrary, the bigger gas holes, about 5-10 millimeter, are irregular, and like honeycomb, so it is also called honeycomb stone. []
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