An encapsulated quartz is an extreme case of a phantom quartz: in a short period during crystal growth, a large amount of material precipitated on the rhombohedral faces of the crystal, forming a thin layer within the crystal.The "top" part of the crystal (often a scepter) is only weakly connected to the "bottom", older part, and sometimes the two parts can be easily separated.The top looks a bit like a cap because its underside is the negative shape of the previous crystal point.
Capped Quartz
A capped quartz is an extreme case of a phantom quartz : In a short period during the growth of the crystal a lot of material precipitated on the crystal's rhombohedral faces, forming a thin layer within the crystal. The "upper part" of the crystal (often a scepter) is only weakly connected to the "lower", older part and sometimes both parts can be separated easily. The upper part looks a bit like a cap because its lower side is the negative form of the former crystal tip.
