 |
  
|
A simple composition…
GLASS
+ |
The indispensable element… |
Sand silica… |
FLUX
+ |
For lowering the melting temperature… |
Soda, potash… |
STABILISER
+ |
To avoid the glass distorting… |
Calcium oxide, magnesium… |
REFINING AGENT
+ |
For creating a material without
faults… |
Arsenic oxide, sodium nitrate
or potassium… |
| FIRE |
To create
the miracle of fusion ! |
|
…hundreds of recipes !
- soda-lime
glass (made with soda, silica and lime) : the most
common (90 % of world production) for common, artisan or
mechanic glass production
- Lead glass : crystal
, strass…
- Boro-silicates (silica and borates),
Alumino-silicates (silica and aluminium),or pure
silica glass, expensive to produce and reserved for
special uses : laboratory glass, telescopes, heat-resistant
tableware (Pyrex) etc.
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