2006-09-02 05:49:28 · 5 answers · asked by sunny_sylvia 2 in Science & Mathematics ➔ Earth Sciences & Geology
Because Crystal is more pure than glass which can be made with just about any kind of sand and enough heat. In addition, crystal has lead (chemical symbol: Pb) added to the mixture which makes it heavier than a similar amount of glass and adds to it's unique qualities.
2006-09-02 07:42:40 · answer #1 · answered by idiot detector 6 · 0⤊ 0⤋
B/c crystal contains everything glass does but adds a compound of led.
2006-09-02 13:34:26 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It is more expensive as they add certain things into the glass while it is being made, giving it a more "shine". Similarly coloured glass can be more expensive than "normal" glass depending upon which chemical has been added to the "mix".
2006-09-02 13:02:35 · answer #3 · answered by Krynne 4 · 0⤊ 0⤋
Glass is crappier. Plus when you moisten your fingertip and run it around the top of a crystal cup it hums. Yay for hummers.
2006-09-02 12:54:41 · answer #4 · answered by youarenotwill 2 · 0⤊ 1⤋
I odn't know.I can actually make crystals. but that is my secret.
2006-09-02 12:54:30 · answer #5 · answered by ocelot42001 3 · 0⤊ 1⤋