Chemical Engineering - Refractory Technology - Discussion

Discussion Forum : Refractory Technology - Section 1 (Q.No. 4)
Quartz is
stable form of silica upto 870°C.
converted to tridymite on firing between 870 to 1470°C.
transformed to crystoballite on heating above 1470°C.
all (a), (b) and (c).
Answer: Option
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