Ŀ
|
|
Ŀ
|
|
SIO2
|
98%
|
}
|
0.2%
|
ܶ
|
2.6 g/cm
|
ܶ
|
1.85g/cm
|
|
<0.1%
|
Cе
|
7.5 Ȼ
|