Mineral Solitaire

Klondike solitaire, but every card is a rock.

Shuffle up a deck where the face of every card is a real mineral — pyrite cubes, neon crocoite, rainbow bismuth — no two decks are ever the same. Between moves, flip a card over and find out what it's worth, what it's used for, and why Mars is red.

Features

• A different deck every deal — 52 cards drawn from a pool of 71 minerals, so your King of Silicates might be quartz today and jadeite tomorrow
• No boring suits — spades and hearts are replaced by four mineral families: Silicates ⬡, Oxides ▲, Carbonates & Salts ✦, and Metallics ⛏, with a red/black chip for classic alternating stacking
• Tap ⓘ on any card for a full mineral profile: chemical formula, Mohs hardness, real-world market price, industrial uses, and fun facts
• Travel while you play — the background rotates every few minutes through 12 famous geological wonders (Giant's Causeway, Uluru, Salar de Uyuni, the Naica Cave of Crystals…), each with a blurb on its location, rocks, and story
• Atmospheric music — gentle Creative Commons piano streamed from Wikimedia Commons, with volume control
• Full solitaire kit — drag & drop, click-to-move, double-click to foundation, unlimited undo, Draw 1 / Draw 3 toggle, timer and move counter

How to play

Classic Klondike rules: build the tableau downward in alternating colors, and send each family Ace → King to its foundation pile. Clear all 52 cards to win. New to solitaire? Draw 1 mode is the relaxed way in.

Learn while you stall on that last buried Ace

Why do quartz watches keep time? What mineral founded the Smithsonian? Which gem sparkles more than diamond but is too soft to wear? Every game quietly teaches you a little geology.

Credits & licensing

All card art, background photography, and music load live from Wikipedia / Wikimedia Commons under free licenses that permit commercial use (CC0, CC BY, CC BY-SA, public domain). Every image and track links to its source file with author and license credit inside the game. Market prices are indicative of 2025–26 ranges and are subject to grade and quality.

Runs in any modern browser. Internet connection needed for imagery and music; the game itself works offline with placeholder cards.