> I’m willing to bet they will go after the smooth rocks and it’s about rarity, not crystals.
Why? Crystals are pretty, rocks are not. We clearly prefer shiny colorful things to dull beige things, even if shiny things are abundant.
Why? Crystals are pretty, rocks are not. We clearly prefer shiny colorful things to dull beige things, even if shiny things are abundant.
The most valued gems in Ancient Rome were the higher-quality varieties of noble opals and pearls, which are not transparent, but which show a variable play of colors, depending on the ambient light and on the angle of sight.