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This article refers to the material. For other uses, see Glass (disambiguation). Glass is a uniform amorphous solid material, usually produced when the viscous molten material cools very rapidly to below its glass transition temperature, without sufficient time for a regular crystal lattice to form. The most familiar form of glass is the silica-based material used for windows, containers and decorative objects.

In its pure form glass is a transparent, strong, hard-wearing, essentially inert, and biologically inactive material that can be formed with very smooth and impervious surfaces. Glass is, however, brittle and will break into sharp shards. These properties can be modified or changed with the addition of other compounds or heat treatment.

Common glass contains about 70% amorphous silicon dioxide (SiO2), which is the same chemical compound found in quartz and in its polycrystalline form, sand.

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Video: Blondie - Heart Of Glass (via emiamericarecords) watch on youtube. http://tumblr.com/xu94qe0c9
xdevotchkax (xdevotchkax) Wed, 16 Dec 2009 15:21:24 -0000
Video: Blondie - Heart Of Glass (via emiamericarecords) watch on youtube. http://tumblr.com/xu94qe0c9
NIce! RT @EaglesNestWine: Glass of red #wine - 75 calories, piña colada 525 cals, regular beer 145 cals http://bit.ly/6mDNu7
finespirits (Caroline) Wed, 16 Dec 2009 15:20:54 -0000
NIce! RT @EaglesNestWine: Glass of red #wine - 75 calories, piña colada 525 cals, regular beer 145 cals http://bit.ly/6mDNu7
RT @JillianCantor: Win an ARC of THE LIFE OF GLASS by @jilliancantor. Just retweet this before Friday 12/8 to enter.
maxiekat (Laura S.) Wed, 16 Dec 2009 15:20:54 -0000
RT @JillianCantor: Win an ARC of THE LIFE OF GLASS by @jilliancantor. Just retweet this before Friday 12/8 to enter.
okay cant find vodka only choya. I down-ed half a rock glass of choya (without mixer & ice) POWER!
carriezelynn (Carrie Zelynn Ng) Wed, 16 Dec 2009 15:20:46 -0000
okay cant find vodka only choya. I down-ed half a rock glass of choya (without mixer & ice) POWER!
RT @watermissions: I RAISE MY GLASS - a New Year's Toast to help those w/out safe water - follow at @iraisemyglass #IRMG iraisemyglass.com
martinchalk (martinchalk) Wed, 16 Dec 2009 15:20:14 -0000
RT @watermissions: I RAISE MY GLASS - a New Year's Toast to help those w/out safe water - follow at @iraisemyglass #IRMG iraisemyglass.com
Tropicana Necklace - Red This pretty two strand necklace has jewel like red and dark pink glass beads of different sha.. http://bit.ly/swWXD
tropicjewels (Tropic Jewels) Wed, 16 Dec 2009 15:20:03 -0000
Tropicana Necklace - Red This pretty two strand necklace has jewel like red and dark pink glass beads of different sha.. http://bit.ly/swWXD

 
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Silicon Folly - Stone and glass work, including instruction manuals for stepping stones, stained glass and hot glass, and forums.
Meta Description: [ Silicon Folly - A site devoted to the art of glass both stained and stone. ]

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