Vitrified sand
Index of articles associated with the same name From Wikipedia, the free encyclopedia
Index of articles associated with the same name From Wikipedia, the free encyclopedia
Vitrified sand is sand that has been heated to a high enough temperature to undergo vitrification, which is the melting of the silicon dioxide or quartz that compose common sand. Vitrified sand is a type of natural glass, contrasted with manufactured glass in which soda ash or potash are added to lower the melting point. Pure quartz melts at 1,650 °C (3,002 °F). There are several natural processes that produce more or less melted sand and one man-made form:
Volcanic glass in many forms is not fused sand because it is formed from molten material.
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