Gypsum
Naica Mine, Chihuahua, Mexico
7 cm
Small group of neogenic gypsum crystals formed in a mine sump. Shows two stages of gypsum growth...an early transparent "selenite" stage of long crystals and a later coating of dusty fine-grained gypsum (Author: Peter Megaw)
Dimensions: | 515 x 445 |
File size: | 26.93 kbytes |
Taken on: | |
Camera model: | |
Shutter speed: | |
Focal length: | |
Aperture: | |
Flash: | |
ISO: |