|
Non pwodwi |
pèl vè premelanje |
|
Aparans |
san koulè, transparan, san bul evidan ak enpurte |
|
Ranje gwosè |
20-200 may (75-830 μm) |
|
Roundness |
≥ 70% |
|
Reflektif |
≥ 1.5 |
|
Dansite |
2.4-2.6g/cm3 |
|
Engredyan prensipal yo |
SiO2 > 70% |
