Assertion: stone | /r/HasProperty | synthetic
Facets:
Source sentences:
text: For information about how to determine if the stone is synthetic, keep reading!
text: Whether a gemstone is a natural stone or synthetic, the chemical, physical, and optical characteristics are the same: They are composed of the same mineral and are colored by the same trace materials, have the same hardness and density and strength, and show the same color spectrum, refractive index, and birefringence (if any).