Attribution & sources
Mineraldle's names, classifications, formula-derived elements, namesakes and hardness facts come from Wikidata, released under CC0 1.0. The frozen dataset was retrieved on 2026-07-16.
Each reveal card reproduces the mineral's verbatim English Wikipedia extract under CC BY-SA 4.0, with a link to the source article.
Dataset version 2026-07-16-777.