Цахиурын давхар исэл — Википедиа нэвтэрхий толь. Цахим холбоос. Tridymite, International Chemical Safety Card 0807 Quartz, International Chemical Safety Card 0808 Cristobalite, International Chemical Safety Card 0809 amorphous, NIOSH Pocket Guide to Chemical Hazards crystalline, as respirable dust, NIOSH Pocket Guide to Chemical …