Doubly Terminated Tourmaline Crystal — Cruzeiro Mine, Brazil, 4.57 g

A natural, untreated tourmaline crystal from the Cruzeiro Mine, Brazil. This slender specimen is doubly terminated, with crystal terminations at both ends. No treatments or repairs have been reported.

• Mineral: Tourmaline
• Origin: Cruzeiro Mine, Brazil
• Specimen weight: 4.57 g
• Dimensions: 6 × 6.5 × 55.5 mm
• Treatment: Untreated
• Repairs: None
• Notable feature: Doubly terminated crystal

All measurements are approximate.