Identification Sphalerite Identification Sheet The principal zinc ore and a notorious deceiver: brilliant adamantine to resinous luster, six-direction cleavage, and a pale streak that …
Identification Magnetite Identification Sheet The strongly magnetic iron oxide: black streak, octahedral crystals, and a pull on the pocket magnet no lookalike can match.
Identification Halite (Rock Salt) Identification Sheet Common rock salt: cubic crystals, perfect cubic cleavage, and the only identification sheet where the taste test is the approved test.
Identification Topaz Identification Sheet The Mohs 8 reference mineral: hard enough to scratch quartz, with perfect basal cleavage and striated prismatic crystals.
Identification Galena Identification Sheet The primary lead ore: soft, very heavy, bright lead-grey metallic, with perfect cubic cleavage.
Confectionery Geology Pop Rocks (Pressurized Vesicular Sucrose) Identification Sheet A vesicular carbonated sugar rock exhibiting spontaneous exothermic dissolution and audible degassing upon contact with moisture — first …
Confectionery Geology Rock Candy (Sucrose Crystal) Identification Sheet A monocrystalline or polycrystalline sucrose formation exhibiting exceptional optical clarity and notable solubility in aqueous environme…
Identification Olivine (Peridot) Identification Sheet The green mineral that makes up much of the Earth's mantle — and surfaces as gemstone peridot when conditions align.
Identification Garnet Group Identification Sheet Not one mineral but a family — hard, dense, and found in almost every metamorphic rock Rockies encounter.
Identification Pyrite (Fool's Gold) Identification Sheet How to tell pyrite from actual gold — and why every newcomer gets fooled at least once.
