Rock Identifier vs MathPact

What rock is that, and is it worth anything? Point your camera at any stone and know in seconds. Rock ID identifies rocks, minerals, gemstones and fossils from a single photo, then answers the two questions everyone actually asks: what is it, and what is it really worth? No hype. Most driveway rocks are worth a few dollars, and this app says so. IDENTIFY ANY ROCK • Snap a photo of any rock, crystal, gem or fossil (or pick one from your library) • Get the name, mineral class and formula, and the rock type • Mohs hardness, how it formed, and where it's found: US localities first • An honest estimated value range for the specimen in your hand • Care and cleaning notes, including which stones water and sunlight ruin REAL OR FAKE • The fakes that fool collectors, named and explained • Dyed howlite sold as turquoise, cubic zirconia as diamond, baked amethyst as citrine, plastic as amber, slag as meteorite • One at-home test for each, so you can check before you pay WORLD MINERAL MAP • Every rock in the guide plotted where it's actually found • Famous American sites: Crater of Diamonds, Emerald Hollow, Herkimer, Topaz Mountain, Petrified Forest • Filter by gems, crystals, birthstones or fake-prone stones • Find the rock shops, gem mines and lapidaries near you TEST BENCH, IDENTIFY WITHOUT A PHOTO • The way geologists actually do it: color, scratch test, streak, magnet, luster • Answer what you can, skip what you can't, and watch the candidate list narrow • Works completely offline, in the field, with no signal FIELD GUIDE • 36 rocks, minerals, gems and fossils with full profiles • Interactive Mohs hardness scale with everyday scratch references • Collector Score: popularity, aesthetics and rarity at a glance • Birthstones, zodiac stones and the lore behind them • Eight illustrated guides: telling a real diamond, the Mohs scale, birthstones month by month, healing crystals, rock tumbling, rockhounding in the USA, the streak test, and what's inside a geode MY COLLECTION • Every scan saved with its photo, date and locality • Add your own finds and notes • See your collection's estimated total value grow CREDITS Packs of 10 or 20 credits. 1 credit unlocks the full result of a scan. No subscription, no auto-renewal. Maps, guides and all other features are free. Note: identifications and value estimates are AI-generated guidance, not a professional appraisal. For a purchase, sale or insurance, get a certified appraisal or lab report. Terms of Use: https://identifier-proxy.vercel.app/rock/terms/ Privacy Policy: https://identifier-proxy.vercel.app/rock/privacy/ Pick up that strange rock, and finally find out what it is.

A little math every day can add up to something bigger. MathPact turns daily practice into a simple family pact: Kids practice. Kids make progress. Parents keep the Promise. Parents create meaningful Promises—real rewards or experiences their child can work toward. Children earn Stars through focused math practice. And every Star represents something real: time spent practicing, skills strengthened, and progress made. PRACTICE WITH A PURPOSE MathPact gives children ages 6–10 focused Daily Challenges built around the core math skills they use again and again: • Number sense and place value • Addition and subtraction • Multiplication and division • Fractions • Decimals • Percentages • Number relationships • Mathematical reasoning Start with a short Level Check, then continue through 15 skill levels that grow from foundations to more challenging reasoning. PROMISES THAT MEAN SOMETHING Stars in MathPact are not just another virtual badge. Parents can connect them to real family Promises: • a special activity • extra play time • choosing the next family movie • a small reward • something meaningful to your family The child sees something worth working toward. The parent sees the real practice behind it. Practice becomes progress. Progress makes the Promise meaningful. BUILT FOR KIDS • Focused Daily Challenges • 15 progressive skill levels • Child-friendly math input • Review before submitting • Pause and continue later • Read Aloud support • Stars earned through completed practice No distracting game world is required. The math stays at the center. BUILT FOR PARENTS Parent Mode gives you a clear view of: • Today’s practice • Current Level • Stars • Streak • Completed Challenges • Learning history • Rewards and Promises Parents stay in control of level choices, rewards, and family expectations. FOCUSED ON CORE MATH MathPact deliberately focuses on the mathematical foundations children use again and again: number sense, computation, fractions, decimals, percentages, mathematical relationships, and reasoning. It does not try to cover every elementary-school mathematics topic. The goal is not to replace school. The goal is to make meaningful math practice easier to start—and easier to keep doing. START FREE Free includes: • One child • Level Check • Level 1 • Daily Challenges • Stars • Rewards and Promises • Progress • History • Read Aloud MATHPACT ADVANCED MathPact Advanced is a one-time purchase that unlocks: • Levels 2–15 • Additional children No subscription. No ads. No MathPact account required. Practice → Progress → Promise.