Substances & minerals — what the world is made of
Gemstones, elements and minerals — every substance with a public record has a profile here, with its formula, hardness and story, assembled live from Wikipedia and Wikidata.
Start with these
Substances & Minerals: FAQ
How do I find a profile in the Substances & Minerals line?
Type the name in the search box above. If a name belongs to more than one subject, HistoryTrail shows the candidates with their descriptions so you can pick the right one — it never silently guesses.
Where do the facts on each profile come from?
Quick facts come from the subject's Wikidata record; the story, timeline and gallery come from its Wikipedia article and Wikimedia Commons. Every profile is assembled live when you open it and lists its sources — if something has no public record, the profile says so instead of inventing it.
Which substances and minerals can I search for?
Any of them with a Wikipedia article and a Wikidata record — the twelve starting points above are only a doorway. Use the search box for anything else in this line.