Perfectly cut rubin gemstone, perfectly shaped, shining red on a black background
Palabras clave
symmetry,
cleavage,
crystallography,
gemstone,
colours,
transparency,
birefringence,
dispersion,
fluorescence,
phosphorescence,
luminescence,
diamond,
ruby,
sapphire,
emerald,
topaz,
quartz,
garnet,
amethyst,
citrine,
aquamarine,
opal,
tanzanite,
zircon,
corundum,
feldspar,
calcite