benitoite blue crystal under longwave uv. specimen from gem mine, san benito co., california, usa.

benitoite barium titanium cyclosilicate blue official state gem california mineral texture close-up detail abstract semi-precious raw unpolished stone rock gemstone micro science geology natural pattern precious rough color crystalline crystal macro gem crystallography sparkle mineral art gemology jewelry jewel structure surface background crack multicolor rockhounding collection high magnification extreme microscope micrography microscopy scientific crystal showcase