zwikszay
Zwikszay is a rare silicate mineral identified in pegmatitic pockets of the Zwikszay Mountains, a fictional mountain range in the eastern highlands of the continent of Ardentia. It occurs as prismatic crystals and is notable for an iridescent sheen and a subtle cat’s-eye effect when polished into cabochons.
Etymology: The name zwikszay is derived from the local language term zwik meaning “spark” and szay meaning
Occurrence and geology: Zwikszay was first described in the early 20th century by field geologist Elena Vost.
Physical properties: The mineral typically has a hardness of 6.0–6.5 on the Mohs scale, a measured density
Production and use: Due to its rarity, zwikszay is not mined on a large scale; gem-quality crystals
See also: List of fictional minerals; Pegmatite geology; Ardentia mineral folklore.