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Quartz Identification Sheet
Quartz Identification Sheet Field identification cues for quartz and its common varieties, with a decision path for …
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Member Field Guide Library Access
Member Field Guide Library Access Full access to the ARE field guide and identification library, including printable specimen cards. … in the library Field Guide to Common Minerals Quartz Identification Sheet Field Trip Safety …
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Amethyst Identification Sheet
Amethyst Identification Sheet The purple quartz that has captivated collectors and jewelers for … lilac to deep violet. The purple coloration is its defining field feature — but note that color is not uniformly …
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Pyrite (Fool's Gold) Identification Sheet
Pyrite (Fool's Gold) Identification Sheet … at 3.5–4); arsenopyrite (silver-white, no yellowing). The field test: pyrite breaks, gold bends. … shows sharp cubic faces with telltale striations. Found in quartz veins, sedimentary rock, and metamorphic schists …
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Fluorite Identification Sheet
Fluorite Identification Sheet … Calcite (softer at 3, rhombohedral cleavage, effervesces); quartz (harder at 7, no octahedral cleavage); topaz (harder, … and banded combinations of all of them. Its defining field test is octahedral cleavage: a broken piece naturally …
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Corundum (Ruby and Sapphire) Identification Sheet
Corundum (Ruby and Sapphire) Identification Sheet The Mohs 9 anchor at the top of every field kit: ruby and sapphire are the same mineral, … (octahedral, softer at 8), garnet (no parting, softer), quartz (far softer). If it scratches topaz, think corundum. …
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Feldspar Identification Sheet
Feldspar Identification Sheet … 90°; flat, mirror-like cleavage faces are the key field feature White White Quartz (harder at 7, no cleavage, glassy throughout); …
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Rock Candy (Sucrose Crystal) Identification Sheet
Rock Candy (Sucrose Crystal) Identification Sheet … White (sweetly) Colorless quartz (much harder, will not dissolve in tea); halite … faces, and a satisfying heft. Unlike most ARE specimens, field testing is encouraged and delicious. Rock candy …
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Crystal Systems and Crystal Habits
… actually see on specimens. Field Guides Students … Mineral Use alongside the identification sheets for hands-on practice. … using examples like cubic galena and pyrite, hexagonal quartz, and botryoidal malachite. Emphasizes reading habit …
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Sugar Minerals: A Confectionery Approach to Understanding Crystal Habit
… argument: the process is observable in real time (unlike quartz growth), repeatable in a kitchen, edible after the … minerals; a lesson plan for chapter meetings; and a brief field section on "advanced sucrose mineralogy" (rock candy identification under a hand lens, complete with a formal ARE …