Chapter 4. Classification and properties

Ordinary chrysoberyl is a yellowish-green, transparent to translucent and often has been referred to in the literature as chrysolite due to the common olive color of many of its gems, but that name is no longer used in the gemological nomenclature. When the mineral exhibits good pale green to yellow color and is transparent, then it is used as a gemstone. Chrysoberyl is often found as twins that produce wedge-shaped or heart-shaped crystals with v-striations. It is also found in pseudohexagonal crystals with repeated twining resulting in sixlings and less commonly as contact twins that are extended along the c-axis (c[001]). Also found as granular to massive material.