A superb specimen of the rare manganese borate gaudefroyite with attractive decoration of vivid garnet var. andradite crystals from the famous NChwaning II Mine, South Africa. It displays black and sharply formed prismatic crystals of gaudefroyite to 7mm. They have lustrous faces which nicely reflect the light. Some small crystals of garnet var. andradite with a rich orange-red color enrich the display. Some contacts. On acrylic base.

Astounding!