Double terminated crystal

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Doubly terminated amethystine quartz crystal

A double terminated crystal is a crystal with two naturally faceted ends. Technically, they have a termination on both ends. [1] It is a rarer form of crystal as it forms free-floating in pockets of clay, rather than on one side of a stone. They are sought after by collectors and are often made into pendants.

According to Gems & Gemology, "the topmost grade of amethyst consists of double-terminated single crystals." [2]


  1. ^ "Metaphysical Quartz Crystal Description:DOUBLE TERMINATED". Retrieved 2018-05-01.
  2. ^ Lucas, Andrew and Hsu Tao. "Moroccan Amethyst: Mining and Marketing." Gems & Gemology, vol. 53, no. 1, Spring2017, pp. 126-127. EBSCOhost,