quartz glass structure |
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navigate by keyword : added amorphous and are consisting containing crystalline differs form from fused glass glasses has high ingredients lower melt melting non other quartz silica temperature temperatures the therefore traditional typically which working |
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The word oyster is used as a common name for a number of different families of saltwater clams, bivalve molluscs that live in marine or brackish habitats. In some species the valves are highly calcified, and many are somewhat irregular in shape. Many, but not all, oysters are in the superfamily Ostreoidea. |
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