sarnasesse

Sarnasesse is a fictional mineral described in fantasy literature and role-playing games as a rare blue‑green silicate gemstone. In in‑world geology, sarnasesse crystals are valued for their vivid color, high refractive index, and distinctive iridescence, which can produce a cat’s-eye or sheen in cabochon cuts.

Discovery and naming: The mineral is said to have been first identified in the fictional Sarnas region by a 19th‑century geologist named Miran Sarn, after whom the stone is named. The lore often places its origin in ancient mining districts that are central to regional myths and treasure narratives.

Properties: Sarnasesse commonly crystallizes as prismatic crystals with a vitreous to resinous luster. It has a measured hardness around 6.0–6.5 on the Mohs scale and a refractive index near 1.58–1.62. Its coloration ranges from emerald‑blue to teal and is frequently characterized by subtle color zoning and fine inclusions that traders call “sarna frost.” The stone is moderately brittle and shows pleochroism in some variants.

Formation and occurrence: In-world lore, sarnasesse forms in hydrothermal veins within felsic host rocks, associated with quartz, sulfides, and accessory minerals such as wolframite. Supposed deposits are placed in the fictional Sarnas Highlands and neighboring archipelagos.

Uses and cultural significance: Due to its beauty and stability, sarnasesse is prized for jewelry and decorative carvings. In some settings it is rumored to enhance focus or channel magical energies, and it appears in trade networks and royal treasuries. The term is widely used in game mechanics to denote a valuable mineral resource.

Notes: There is no confirmed record of sarnasesse outside its fictional contexts; readers should treat it as a construct of speculative fiction rather than a real mineral.