Learn real geology through hands-on scratch testing, streak analysis, and mineral identification challenges
Download CandyLand 2Choose your preferred welcome package and unlock premium mineral collections immediately upon installation
Bonus codes valid for new installations only. One code per user account. Codes must be redeemed within 7 days of first app launch. No purchase necessary.
Every identification method used by professional geologists, adapted for interactive mobile learning
Drag a virtual glass plate across mineral specimens to determine hardness ratings. Feel the resistance as you test against the Mohs scale, learning which minerals scratch glass and which are scratched by it.
Observe authentic streak colors as you test minerals against porcelain plates. Discover why pyrite leaves a greenish-black mark while galena produces gray streaks, revealing hidden chemical properties.
Compare the heft of identical-sized specimens to understand density variations. Learn why galena feels surprisingly heavy for its size while chalcopyrite feels lighter, teaching real mineralogical concepts.
Apply your test results to narrow down three mineral candidates to a single correct identification. Each case provides clear evidence, teaching logical deduction alongside geological knowledge.
Receive one new mineral challenge daily, synchronized to your device date. The same specimen appears for all players worldwide, creating a shared learning experience across time zones.
Build week-long and month-long identification streaks by solving consecutive daily challenges. Track your progress with visual indicators and maintain your geological learning momentum.
The application displays three-dimensional mineral specimens using realistic surface textures and lighting. Each specimen shows authentic visual characteristics: pyrite's brassy metallic luster, galena's cubic cleavage planes, and chalcopyrite's irregular surfaces.
You perform tests by dragging your finger across the screen. The scratch test requires a horizontal swipe motion to simulate scraping glass against the mineral surface. The streak test uses a similar gesture against a virtual porcelain plate. Each interaction provides immediate visual feedback.
The tutorial begins with a guided first case, walking you through both testing methods before presenting three mineral options. Subsequent cases maintain this rhythm: perform two assays, then identify the specimen from three choices based on hardness, streak, and crystal form.
The development team focused on creating an educational experience that teaches genuine geological testing methods. The scratch test, streak analysis, and mineral properties all reflect authentic mineralogy practices used in professional field identification. The candy-themed visual design makes the scientific learning approachable while maintaining educational integrity.
Android platform · Free installation · Under 2 minutes to first test
Download CandyLand 2Requires Android device with touch screen · Contains optional in-app bonus packs · Rated suitable for all ages · Approximately 85MB download size