goshenite (colorless beryl) on schorl (black tourmaline) matrix

goshenite clear white colorless schorl black tourmaline cyclosilicate crystal mineral rough texture macro detail close-up stone rock semi-precious gemstone gem geology science mineralogy mineral specimen complex natural geological pattern vivid intense colorful bright lustrous gem-quality jewelry ornamental translucent transparent crystallography rare gemology uncut unpolished luster lithotherapy cluster earth element healing background