Speculum Ingot
Bronze bright enough to be a mirror: for optics, cases and plates.
kinditemcreative tabFluxion: Materials
Currents
Alloy4What the Loupe reads: 4 in all. Wheel of Currents
In the Codex
Entry Speculum — Copper and antimony — bronze brighter than a mirror. Read copper.
Where to get
Caches
Vault of the Loop (after the Auditor), the Meanders