Pyrite vs Gold: Differences and Identification
Compare pyrite vs gold by crystal form, hardness, density, and testing limits. Learn why identifying a shiny grain does not establish a rock’s gold content.
Read guide →Practical reference library
Crystal Identification, Care & Pairing Guides
Useful, source-aware articles that separate mineral properties from traditional symbolism.
Types of Jasper: Colors, Patterns, and Trade Names
Explore types of jasper, including red, picture, brecciated, and mookaite varieties. Learn which names describe appearance and which need closer scrutiny.
Read guide →Types of Agate: Patterns, Inclusions, and Names
Explore types of agate, from banded and moss agate to dendritic and fire agate. Separate visible features, trade names, treatments, and locality claims.
Read guide →Agate or Geode? The Difference Explained
Agate or geode is not always an either-or choice. Learn how banded chalcedony, hollow cavities, and quartz crystals can occur together in one specimen.
Read guide →Types of Turquoise: Color, Treatment, and Origin
Understand types of turquoise by color, matrix, treatment, and origin. Learn why mine names and photographs alone cannot authenticate a turquoise stone.
Read guide →Jadeite vs Jade: Where Nephrite Fits
Jadeite is a type of jade, not its opposite. Compare jadeite and nephrite, understand treatment labels, and separate material identity from quality.
Read guide →Opalite vs Opal: Glass, Natural Opal, and Names
Opalite vs opal explained: compare manufactured glass, natural opal, play-of-color, and confusing trade names before choosing or identifying a stone.
Read guide →Garnet vs Ruby: Key Differences and Safe Checks
Compare garnet vs ruby by mineral identity, color, hardness, and testing limits. Learn what photos reveal and when a gemologist should examine your stone.
Read guide →How to Tell If Jade Is Real: Safe Checks
Learn how to tell if jade is real without damaging it. Understand flashlight limits, Type A/B/C treatments, seller claims, and when lab testing helps.
Read guide →How to Tell If Turquoise Is Real: Safe Checks & Common Mistakes
Real, untreated, and imitation turquoise are different claims. Use a non-destructive observation checklist, ask better seller questions, and avoid misleading home tests.
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