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Rocksday

Rocksday

Daily rock & mineral guessing game — free, no signup

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Guess the rock, mineral or gem of the day from a zoomed-in photo in six tries. Wrong guesses zoom out and unlock scientific clues. Free browser game with a 300+ specimen library, compare pages, and archive. No account needed.

Rocksday makers

Here are the founders, developers, designers and product people who worked on Rocksday

Kamto Rocksxxx
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