Journal

Green crystals span a wide range of minerals, colours and geological origins. The major green varieties in crystal jewellery include green phantom quartz, emerald phantom quartz, prehnite, green rutile quartz and green aventurine. Each has a distinct appearance, formation process...

Green phantom quartz is clear quartz containing a phantom — an internal outline formed by chlorite or other green minerals deposited during a pause in crystal growth. The surrounding quartz then continued growing, encapsulating the mineral layer. It is found...