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Reference

Index of Entries

The complete index of Zultpedia entries — every published article, comparison, FAQ, property guide, specimen record, education guide, glossary term, and birthstone reference, listed by category and date. Each entry is fact-checked and cited; tier and reading time appear beside the title.

ARTICLES

32
  1. № 001Cleaning and Storing Color-Change DiasporePEER REVIEW5 MIN
  2. № 002Common Treatments on Other Color-Change Gems — and Why Diaspore Is DifferentPEER REVIEW5 MIN
  3. № 003Export Documentation for Türkiye-Sourced ZultanitePEER REVIEW5 MIN
  4. № 004How Master Cutters Orient Diaspore RoughPEER REVIEW5 MIN
  5. № 005How Zultpedia Resolves Conflicting Sources on ZultaniteEDITORIAL4 MIN
  6. № 006Identifying Natural Versus Synthetic DiasporePEER REVIEW5 MIN
  7. № 007Is Zultanite Rarer Than Diamond? How to Read Rarity ClaimsREFERENCE2 MIN
  8. № 008Lab Reports — What GIA and IGS Document for Color-Change DiasporePEER REVIEW5 MIN
  9. № 009Metamorphic Geology of the İlbir Mountains — Zultanite Source FormationPEER REVIEW5 MIN
  10. № 010Mining Conditions at the İlbir Mountains — Zultanite Source GeologyPEER REVIEW5 MIN
  11. № 011Pink and Lilac Zultanite — Why These Color Tones MatterREFERENCE2 MIN
  12. № 012Pleochroism vs Color Change in Zultanite — Two Optical Effects, One CrystalPEER REVIEW5 MIN
  13. № 013The Absorption Spectrum of Color-Change DiasporePEER REVIEW5 MIN
  14. № 014The Anatolian Heritage of Zultanite — Names, Geography, Diaspore SourcePEER REVIEW5 MIN
  15. № 015The Color-Change Phenomenon in Zultanite — How and Why It WorksPEER REVIEW8 MIN
  16. № 016The Durability of Zultanite Jewelry — Hardness Versus ToughnessPEER REVIEW5 MIN
  17. № 017The History of Color-Change Diaspore — From Haüy to the İlbir MountainsPEER REVIEW5 MIN
  18. № 018The İlbir Mountains — The Single-Source Origin of Color-Change DiasporePEER REVIEW9 MIN
  19. № 019The Lapidary of Zultanite — Why 97% of the Rough Is Lost in CuttingSECONDARY9 MIN
  20. № 020The Trace-Element Chemistry of Zultanite — Iron, Chromium, and the Color-Change MechanismPEER REVIEW5 MIN
  21. № 021What Is Zultanite? The Color-Change Diaspore from TürkiyePEER REVIEW7 MIN
  22. № 022Why Zultanite Has No Secondary LocalityPEER REVIEW5 MIN
  23. № 023Why Zultanite Is Rare — Single Source, Cleavage Loss, and Trace ChemistryPEER REVIEW5 MIN
  24. № 024Why Zultanite Is Sold UntreatedPEER REVIEW5 MIN
  25. № 025Zultanite — Fracture-Filling and Coating Detection in Gemological LabsPEER REVIEW4 MIN
  26. № 026Zultanite Buying Guide — Questions to Ask Before You BuyREFERENCE2 MIN
  27. № 027Zultanite Chain of Custody — From İlbir Mountains to the BuyerPEER REVIEW5 MIN
  28. № 028Zultanite Fact-Check Cadence and Drift ManagementEDITORIAL4 MIN
  29. № 029Zultanite Lab Reports — Why “No Treatment” Is the Documented NormPEER REVIEW4 MIN
  30. № 030Zultanite Resizing — Why Heat-Based Ring Sizing Threatens the StonePEER REVIEW4 MIN
  31. № 031Zultanite Ring Settings — Bezel vs Prong Durability Trade-OffsPEER REVIEW4 MIN
  32. № 032Zultpedia Source Hierarchy for Zultanite EntriesEDITORIAL4 MIN

COMPARISONS

7
  1. № 033Zultanite vs Alexandrite — Two Gems, One Phenomenon, Different PropositionsPRIMARY10 MIN
  2. № 034Zultanite vs Ametrine — Color Change vs Color ZoningPEER REVIEW5 MIN
  3. № 035Zultanite vs Andalusite — Two Türkiye-Adjacent Pleochroic Gems ComparedPEER REVIEW5 MIN
  4. № 036Zultanite vs Color-Change GarnetPEER REVIEW5 MIN
  5. № 037Zultanite vs Color-Change SapphirePEER REVIEW5 MIN
  6. № 038Zultanite vs Csarite vs Ottomanite vs Turkizite — One Gem, Four NamesPEER REVIEW5 MIN
  7. № 039Zultanite vs Opal — Color Change vs Play-of-ColorPEER REVIEW5 MIN

PROPERTY GUIDES

9
  1. № 040Cleavage of Zultanite — Perfect on {010}PEER REVIEW4 MIN
  2. № 041Color Change of Zultanite — Three Illuminants, One CrystalPEER REVIEW4 MIN
  3. № 042Crystal Habit of Diaspore — Tabular, Acicular, MassivePEER REVIEW4 MIN
  4. № 043Hardness of Zultanite — 6.5 to 7 on the Mohs ScalePEER REVIEW4 MIN
  5. № 044Optical Character of Zultanite — Biaxial PositivePEER REVIEW4 MIN
  6. № 045Pleochroism of Zultanite — Three Crystallographic ColorsPEER REVIEW4 MIN
  7. № 046Refractive Index of Zultanite — 1.682 to 1.752PEER REVIEW4 MIN
  8. № 047Specific Gravity of Zultanite — 3.30 to 3.39PEER REVIEW4 MIN
  9. № 048Toughness of Zultanite — Why Hardness Alone LiesPEER REVIEW4 MIN

EDUCATION

8
  1. № 049Buying Zultanite Without Getting Cheated — A Buyer’s ChecklistEDITORIAL4 MIN
  2. № 050Caring for Zultanite Jewelry — Cleaning, Storage, and WearEDITORIAL4 MIN
  3. № 051How Much Is Zultanite Worth? — Price and Value GuideTIER 37 MIN
  4. № 052How to Identify Zultanite — A Five-Step Field GuideEDITORIAL4 MIN
  5. № 053How to Insure Zultanite JewelryPEER REVIEW5 MIN
  6. № 054How to Photograph Zultanite Color ChangePEER REVIEW5 MIN
  7. № 055How to Read a GIA Zultanite ReportPEER REVIEW5 MIN
  8. № 056How to Spot Fake Zultanite — A Field ChecklistPEER REVIEW5 MIN

BIRTHSTONES

12
  1. № 057April Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  2. № 058August Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  3. № 059December Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  4. № 060February Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  5. № 061January Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  6. № 062July Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  7. № 063June Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  8. № 064March Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  9. № 065May Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  10. № 066November Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  11. № 067October Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN
  12. № 068September Birthstones — Modern, Traditional, and Where Zultanite FitsEDITORIAL3 MIN

SPECIMENS

8
  1. № 0690.78-Carat Zultanite — Round Brilliant, Moderate Color ChangeEDITORIAL
  2. № 0701.25-Carat Zultanite — Pear Cut, Strong Color ChangeEDITORIAL
  3. № 0711.95-Carat Zultanite — Marquise Cut, Strong Color ChangeEDITORIAL
  4. № 0722.08-Carat Zultanite — Emerald Cut, Moderate Color ChangeEDITORIAL
  5. № 0733.10-Carat Zultanite — Cushion Cut, Champagne-Phase VisibleEDITORIAL
  6. № 0744.50-Carat Zultanite — Oval Brilliant, Strong Color ChangeEDITORIAL
  7. № 0756.30-Carat Zultanite — Cushion Cut, Exceptional Color ChangeEDITORIAL
  8. № 0767.25-Carat Zultanite — Faceted Oval, Strong Color ChangeEDITORIAL

FAQ

6
  1. № 077How to Identify Real Zultanite — Frequently Asked QuestionsPEER REVIEW6 MIN
  2. № 078Zultanite — Frequently Asked QuestionsPRIMARY6 MIN
  3. № 079Zultanite Colour and Rarity — Frequently Asked QuestionsREFERENCE2 MIN
  4. № 080Zultanite Jewelry Care — Frequently Asked QuestionsPEER REVIEW6 MIN
  5. № 081Zultanite Price and Value — Frequently Asked QuestionsTIER 35 MIN
  6. № 082Zultanite vs Other Color-Change Gems — Frequently Asked QuestionsPEER REVIEW6 MIN

GLOSSARY

31
  1. № 083Alexandrite EffectPEER REVIEW
  2. № 084AsterismPEER REVIEW
  3. № 085BauxitePEER REVIEW
  4. № 086Biaxial PositivePEER REVIEW
  5. № 087BirefringencePEER REVIEW
  6. № 088CabochonPEER REVIEW
  7. № 089ChromophorePEER REVIEW
  8. № 090CleavagePEER REVIEW
  9. № 091Color ChangePRIMARY
  10. № 092CrownPEER REVIEW
  11. № 093CuletPEER REVIEW
  12. № 094DiaspeírōPRIMARY
  13. № 095DispersionPEER REVIEW
  14. № 096FacetPEER REVIEW
  15. № 097FluorescencePEER REVIEW
  16. № 098FTIR SpectroscopyPEER REVIEW
  17. № 099GirdlePEER REVIEW
  18. № 100IlluminantPEER REVIEW
  19. № 101InclusionPEER REVIEW
  20. № 102LA-ICP-MSPEER REVIEW
  21. № 103LustrePEER REVIEW
  22. № 104MetamorphismPEER REVIEW
  23. № 105Mohs ScalePEER REVIEW
  24. № 106Optic AxisPEER REVIEW
  25. № 107OrthorhombicPEER REVIEW
  26. № 108PavilionPEER REVIEW
  27. № 109PleochroismPRIMARY
  28. № 110Refractive IndexPEER REVIEW
  29. № 111Specific GravityPEER REVIEW
  30. № 112TablePEER REVIEW
  31. № 113UV-Vis-NIR SpectroscopyPEER REVIEW
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