1.zircon mineral sand is usually colorless and transparent crystal state, 2.hardness 7.8, specific gravity ... .10%≤0.20%≤0.30%3, Introduction Pure zircon mineral sand is usually colorless and transparent crystal state, Quartet column construction, normally ... susceptibility low, non-conductive; the melting point of 2550 °C. Zircon sand normally symbiotic with ilmenite, rutile, monazite and xenotime in ...