Color zoning occurs during gem formation, when a crystal forms layers with slightly different chemical compositions. The resulting areas can show different colors. Although apatites can display pleochroism, the two colors this specimen displays are a result of color zoning. 1.01 cts, rectangular step cut, Brazil. © The Gem Trader. Used with permission.
Article: What is Gemstone Pleochroism?
Credit: The Gem Trader
|Natural or man made||Natural|