Fluorides Materials
Aluminum  Fluoride(AlF3)1~4mm
Barium  Fluoride(BaF2)1~4mm
Calcium  Fluoride(CaF2)1~4mm
Cerium  Fluoride (CeF3)1~4mm
Lanthanum  Fluoride(LaF3)1~4mm
Lithium  Fluoride(LiF)1~4mm
Magnesium  Fluoride(MgF2)1~3mm   3~5mm   3.5mm  5.0mm
Cryolite(Na3AlF6)1~4mm
Yttrium  Fluoride(YF3)1~3mm   3~5mm  
Ytterbium  Fluorid(YbF3)0.1~5mm