Is glass made by sand? If it is than why are there different types of Glass?
Most glass is about 70 – 72% silicon dioxide, or sand. There are at least three factors that make up what type of glass is developed. The first is determined by what materials are added into the mixture. For example, the most common type of glass is soda-lime glass which is nearly 30% sodium and calciium oxides. Pyrex is 10% boric oxide and lead glass is a minimum of 24% lead oxide. Additives can also be used to create tinted glass.
The second factor in the difference between different types of glass is annealing, or changing the rate of cooling. Regular glass is called annealed glass. Cooling the glass more quickly (heat strengthed glass which is about twice as strong as annealed glass) results in a stronger glass and glass that glass is even more rapidly cooled is called tempered glass, which is usually four times as strong as annealed glass.
The last item effecting the composition of the glass is the addition of coatings or laminates. Coatings, such as metal oxide coatings, are used to change the reflectivity of the glass, resulting in better energy efficiencies due to lower transmission rates. Laminates can be added to further strenghten the glass to produce burglar or bullet resistance or sound reduction properties.
MardyMarsupial
on February 8th, 2012
Yes it is – but with additives e.g. lead for lead crystal.
FeeltheForce
on February 8th, 2012
There are different types of glass based on what type of sand the glass is made out of. Some glass products are made out of volcanic ash, and they are of very high quality. The glass made is different also due to impurties in the sand or ash.
Sincerely,
Young Einstein
Bullfrog
on February 8th, 2012
depends on the maker.. the material to make glass is usally sand, but the people who process sand into glass, shape size can chose their own preference on how its created
CherryBerry
on February 8th, 2012
yes. there are there different types of sand
GiddyUp
on February 8th, 2012
impurities imbue differing properties to glass
Stare
on February 8th, 2012
No, glass is made ‘from’ sand. People make glass!
Salinger
on February 8th, 2012
mabey cause there is different types of sand
DownUnder
on February 8th, 2012
I heard when lightning strikes sand it forms glass.
SpeedDemon
on February 8th, 2012
-because there are also many different types of sand,.
Gilbert
on February 8th, 2012
glass is made from sand heated at extreme heats…there are different types of glass because there are different types of sand…like white sand, dark sand, sand with crystals…etc
FeralFeline
on February 8th, 2012
yes it is
started all in anchient egypt when the ppl found this sand n put it in the sun n it would ment n make glass n they would add indigo 2 stain it
BurningBiker
on February 8th, 2012
because the sand can be made differently
LighteningBolt
on February 8th, 2012
Well, it’s made from sand, if that’s what you mean. Different kinds of glass have different kinds of additives to make it stronger/thicker or clearer, and methods for making glass can also vary. Also, sand itself is always different from beach to beach. The only kind of sand that remains entirely consistent is manmade.
Dex
on February 8th, 2012
Glass is made by humans.
Sometimes it is made “out of” sand.
Strictly speaking, glass is silicon dioxide that has been melted into large sheets and cooled. But there are other kinds of materials that are very much like glass and perform the same function – some plastics for instance, also quartz in some cases.
Additionally minute additives are often placed in the glass to enhance its properties in one fashion or another.
CatNap
on February 8th, 2012
Glass is primarily SiO2 as is sand. It’s just the conditions of formation of glass is very different thatn sand.
Highway
on February 8th, 2012
Sand is made from weathered rocks. Many rocks are made of different materials, so the sand from them will be different. Therefore creating different types of glass.
Highway
on February 8th, 2012
Yes Glass is made by sand.And it takes different forms and shapes.there is a process tht can make different glasses.
FuzzyFerret
on February 8th, 2012
BECAUSE THERE ARE DIFFERENT KINDS OF SANDS