|
|
Vakana fitaratra eo amin'ny sehatra mahazatra |
vera vakana amin`ny avo roundness ambonin`ny |
|
Bika Aman 'endrika |
tsy misy loko, mangarahara, tsy misy bubbles sy loto mibaribary |
tsy misy loko, mangarahara, tsy misy bubbles sy loto mibaribary |
|
Ny habeny |
20-140 harato (109-830 μm) |
10-40 harato (380-1700 μm) |
|
Roundness |
≥ 80% |
≥ 90% |
|
Reflectivity |
≥ 1.5 |
≥ 1.5 |
|
hakitroky |
2.4-2.6g/cm3 |
2.4-2.6g/cm3 |
|
Akora fototra |
SiO2 > 70% |
SiO2 > 70% |