Quartz
Serra de Congonhas, Diamantina, Minas Gerais, Brazil
A large cluster of glassy, colorless, and translucent to (mostly) transparent quartz crystals. Individual crystals range from 1 mm to 11 cm in length.
Close-up of terminations. Field of view about 10 cm.
Specimen dimensions: 15.5 x 12.0 x 10.5 cm (6.1 x 4.7 x 4.1 inches)
© Steve Hardinger and Dragon Minerals 2012. All rights reserved.