I have many colors
Glass can be of many colors.
I'm a transformation of another thing
Transformation of sand.
I can be different things, if shaped properly
IVases of different shapes, windows, cups etc.
I can hurt you
Glass can cut you and cause serious injuries..
I used to be strong, but now I'm thin and fragile
Glass is made of sand. Sand is strong, you can't really damage it.
I usually don't come alone
In a phone, a tablet, a TV, windows...
I'm here for a really long time
Glass is one of the Earth's oldest human-made materials.
I can be of use alone or with other things
Glass can be used in windows(alone), or phones, computers etc.(with other things)
There is no age limit to use me
People of all ages use glass somehow, glass is everywhere. TVs, tablets, phones, computers, cups, windows.
I come with a price, but I was born free.
You can buy glass, either alone or in something like a phone. But glass is made of sand, which you can get for free.
If I die correctly, I can become me again
Glass can be crushed back into sand.