Moonstone vs Opalite: Natural Feldspar or Glass?
Compare moonstone and opalite glass by body color, adularescence, glow, inclusions, bubbles, edges, hardness, trade names, and care.
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Crystal Guides
Explore crystal identification, look-alike comparisons, mineral varieties, and practical care. Each guide explains what visual clues can tell you and when professional testing is needed.
New to identification? Start with the crystal identification chart or our non-destructive identification guide.
Clear Quartz vs Glass: 7 Non-Destructive Clues
Tell likely clear quartz from glass using crystal form, inclusions, bubbles, flow lines, edges, optical behavior, and provenance without scratching it.
Read guide →Black Tourmaline vs Obsidian: 8 Ways to Tell Them Apart
Compare black tourmaline and obsidian by origin, texture, striations, fracture, luster, hardness, translucency, and care.
Read guide →How to Tell If Rose Quartz Is Real: Safe Visual Checks
Check likely rose quartz using color, cloudiness, luster, inclusions, shape, dye clues, provenance, and other non-destructive observations.
Read guide →Natural Citrine vs Heat-Treated Amethyst: How to Tell
Compare natural citrine and heat-treated amethyst by color, zoning, crystal form, inclusions, disclosure, and safe non-destructive clues.
Read guide →Amethyst vs Purple Fluorite: 7 Visual Differences
Compare amethyst and purple fluorite by crystal shape, cleavage, zoning, hardness, luster, and safe care.
Read guide →Best Crystals for Beginners: A Practical Selection Guide
Choose beginner-friendly crystals by durability, care, identification value, budget, and clearly labeled traditional symbolism.
Read guide →How to Store Crystal Jewelry by Mohs Hardness
Prevent scratches and chips by organizing crystal jewelry according to hardness, cleavage, settings, and travel risk.
Read guide →Birthstones by Month: Modern vs Traditional Lists
Understand why modern and traditional birthstone lists differ and how to choose a durable, meaningful alternative.
Read guide →Crystal Pairing Compatibility: Hardness, Water and Storage
Learn how to compare crystal pairings using Mohs hardness, cleavage, water sensitivity, light stability, settings, and storage context.
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