Fluorite - Naica, Mun. de Saucillo, Chihuahua, Mexico
"An oustanding attractive example of spinel-law twinning in fluorite. Glassy lustrous water clear transparent colorless crystals of twinned fluorite to 3.4 cm in size are set aesthetically upon a small amount of matrix. Shows perfectly all around 360 degrees. Damage-free.
Size: 5.5 x 4.1 x 2.7 cm (miniature)"
via danweinrich.com
