someHerrings
Chameleon Corundums - Halogen White Light
FOV: 3" wide
From a friend comes this collection of synthetic corundum (Aluminum Oxide). They show different colors under various kinds of white light due to impurities creating different absorption bands. This property has been called the "alexandrite effect" since chrysoberyl (var. alexandrite) displays similar color change.
Shown under white halogen light.
Series best viewed in Light Box mode using Right and Left arrows to navigate.
Photostream best viewed in Slideshow mode (in the dark).
Chameleon Corundums - Halogen White Light
FOV: 3" wide
From a friend comes this collection of synthetic corundum (Aluminum Oxide). They show different colors under various kinds of white light due to impurities creating different absorption bands. This property has been called the "alexandrite effect" since chrysoberyl (var. alexandrite) displays similar color change.
Shown under white halogen light.
Series best viewed in Light Box mode using Right and Left arrows to navigate.
Photostream best viewed in Slideshow mode (in the dark).