'The hardest substances in nature are wurtzite boron nitride & lonsdaleite; this gem is actually third'
diamond
DESTINATION: EARTH: The hardest substances in nature are wurtzite boron nitride & lonsdaleite; this gem is actually third
The hardest substances in nature are wurtzite boron nitride & lonsdaleite; this gem is actually third
The hardest substances in nature are wurtzite boron nitride & lonsdaleite; this gem is actually third
DESTINATION: EARTH
diamond
DESTINATION: EARTH