Ruby - India(LW), Calcite - France(LW), Fluorite - England(LW), Calcite - Bulgaria(LW)
SW - short waves 254nm, LW - long waves 365nm
Size - from 3,8 x 3,8 x 2,5 cm to 5,0 x 4,6 x 4,5 cm
Weight - 275 g (whole set)
Ruby - India(LW), Calcite - France(LW), Fluorite - England(LW), Calcite - Bulgaria(LW)
SW - short waves 254nm, LW - long waves 365nm
Size - from 3,8 x 3,8 x 2,5 cm to 5,0 x 4,6 x 4,5 cm
Weight - 275 g (whole set)