detailed closeup of polished blue kyanite gemstone for jewelry or geology study

kyanite gemstone polished blue closeup jewel mineral striations gradient geology jewelry design crystal gem stone rock natural texture detail shiny raw beauty study decoration facet mineralogy precious translucent pretty lapidary cut lustrous metallic streaks specimen smooth artistic collectible clarity classic elegant etched exotic exquisite fine glossy gradation highlight mineralistic refined special tactile variegated ai generated