Black Tourmaline Piece Coloring Page

Parallel vertical striations run the full length of the hexagonal crystal column, creating natural grooves that define tourmaline's signature appearance in this coloring design. The crystal tapers slightly toward its flat termination at the top, while the bottom embeds into a chunky, angular base with irregular edges and surface texture. Each facet of the six-sided prism shows clear separation lines where different crystal faces meet. The vertical grooves need consistent directional shading to emphasize their depth and the crystal's columnar form. Try metallic grays, deep charcoals, or midnight blues with white highlights on the raised ridges to capture tourmaline's reflective surfaces. The rough base could use browns, earth tones, or contrasting colors to distinguish the raw stone from the polished crystal structure above it.