Vermiculite

Moh's hardness:1-1.5
market value:64.51dollar/ton
main application:construct, metallurgy, husbandry

Wollastonite

Moh's hardness:4.5-5
market value:120.96 dollar/ton
main application:ceramic, chemical industry, metallurgy, electron, machinery, papermaking, automobile, agriculture

Zircon

Moh's hardness:7-8
market value:2096.77 dollar/ton
main application:refractory material , ceramic, glass