Stoneye

Rock · Igneous rock

Pegmatite

A rock is a mix of minerals, so it has no single hardness or streak. Scratching it tests whichever grain you happen to touch. Stoneye names the rock from the photo and lets you test the minerals inside it.

Minerals in it

Values from Mindat. Where the source gives a range, the whole range is in the table; it is never narrowed to make identification easier.

Names in other languages: Wikidata

Have a stone like this?

Photograph it with Stoneye for a shortlist, then narrow it down with the same tests. The app tells you when it is not sure instead of guessing.

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