Sources & Methodology
Everything we publish is grounded in verifiable evidence and transparent methods.
Source Selection
We identify credible sources from scientific literature and authoritative institutions.
Expert Review
Subject-matter knowledge evaluates content for accuracy, context and relevance.
Editorial Synthesis
Our editors synthesise findings into clear, balanced explanations.
Scheduled Updates
Content is reviewed on a regular cadence to reflect new research.
What we draw from
Peer-Reviewed References
Journals and academic papers in mineralogy and gemology.
Geological Databases
National and international databases with maps and datasets.
Gemological Institutions
Publications from museums, universities and professional bodies.
Field & Source Context
Field reports and local knowledge that provide provenance.
Editorial Notes
Clarifications and definitions written by our editorial team.
How we verify claims
A disciplined process keeps content accurate and fair.
- 1Identify the claim to be supported
- 2Locate the most relevant sources
- 3Evaluate authority, method and date
- 4Cross-check across multiple sources
- 5Document citations and key takeaways
- 6Publish, then revisit as evidence emerges
Independent educational resource
TurkishDiaspore.org is an educational gemstone resource by Zultanium.
Update policy
Reviewed
By subject-matter knowledge
Updated
Refreshed over time
Versioned
Changes tracked for transparency
Living content
Transparent cadence
Common questions about our sources
What are the limits of our sources?
Science evolves; some details may change as new research emerges.
Do we guarantee completeness?
No — we cannot cover every publication.
Do we provide valuations?
No pricing or market value information.
Are we a certification body?
No — we do not certify gemstones or issue reports.
Spotted an error or have a source suggestion?
We’re here to help you learn more about the stone, not to sell it.
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