Rare Seafoam Blue Borcarite Crystals on Matrix (Thumbnail) - Charcas, Mexico For Sale

An outstanding thumbnail specimen featuring sharp, highly lustrous, sea-blue to turquoise-green Borcarite crystals perched on a skarn matrix accented by tiny olive-green micro-crystals (likely Vesuvianite) from Charcas, San Luis Potosí, Mexico.Borcarite—an exceptionally rare calcium magnesium borate carbonate mineral—reaches its absolute world benchmark for crystal size, clarity, and color at Charcas.An essential piece for systematic rare species collectors, Mexican locality specialists, or high-end thumbnail display suites. You will receive the exact specimen pictured.Weight = 4.3g