all you need to know about glass. glass glass glass!!!! n glass is made up of three things: n...
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All You Need to Know
About Glass
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Glass Glass GLASS!!!!
Glass is made up of three things:
SAND (silicon dioxide) viscosity SODA ASH (sodium carbonate)
fluidity LIME (calcium oxide) stability
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True Stained Glass vs. Today’s Stained Glass
*True Stained Glass is STAINED:
-Painted On, Then Fired
*Today’s Stained Glass is-Colored in the manufacturing
processwith metal oxides
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Metal Oxides
COBALT makes blue glass SELENIUM and GOLD- makes
red, pink SULFUR-makes amber COPPER- makes green TIN or CALCIUM- makes white
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Qualities of Glass
Transparent- see through
Translucent- lets light through only
Opaque- cannot see through(black glass)
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Clear Glass
Transparent No color Sometimes has a
greenish or bluish cast around
the edges
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Cathedral Glass
• Transparent
• Colored
• May have a texture
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Waterglass
*A type of Cathedral glass (transparent, colored)
*Rippled surface (like water)
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Streaky (Wispy) Cathedral
Cathedral Glass (colored)
(transparent in some areas)
with ‘milky’ swirls in it.
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Glue Chip
Glass which has been surface-treatedwith glue, then fired. The glue chips off, and then looks like a frosted windshield
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Opalescent Glass
Translucent glass with two or more colors swirled together
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Iridescent Glass
Glass treated with a finish that makes its surface ‘shimmer’ with sparkles of pink, green and gold(looks like an oil spill)
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Baroque (not broke..) Glass
Clear glass with bold swirls of one or two colors
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Specialty GlassOff Limits to Beginners
Intermediate and Advanced Students Only:
*Iridescent
*Baroque
*Certain Opalescents
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Glass…not cheap…...
Warm Colored Glass- Red Yellow and Orange &
Pink
IS DOUBLETHE PRICE OF
Cool-Colored Glass-Blue Green and Purple
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You may purchase warm colors from me or from Hobby Lobby.
If you just need a little bit, buy from me ($1- $3 usually)
More? Go to Hobby Lobby ($6-8)
Warm colors may be avoided, if you’d rather not spend any extra money.
Glass…not cheap…...
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Transparent(see through)
Translucent(light through)
Opaque(can’t see through)
Cathedral
Textured Cathedral
Waterglass
Glue Chip
Opalescent Black Glass
---------- Streaky / Wispy Cathedral -------
Baroque
------------------------------Iridized/ Iridescent-----------------------------