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…secondary materials Adds 38 new mineral families to close Gem-A FGA Foundation + Diploma coverage gaps identified in the May 2026 syllabus audit. Natural minerals (23): ametrine, andalusite, benitoite, bronzite, chrome-diopside, chrysocolla, coral, goshenite, hauyne, hematite, hydrogrossular, jet, kornerupine, maw-sit-sit, maxixe-beryl, moldavite, musgravite, obsidian, scapolite, serpentine, sinhalite, star-diopside, taaffeite Synthetics (6): synthetic-alexandrite-flux, synthetic-alexandrite-hydrothermal, synthetic-emerald-lechleitner, synthetic-ruby-hydrothermal, synthetic-ruby-kashan-flux, synthetic-sapphire-czochralski Simulants (9): ambroid, bone, copal, dyed-howlite, dyed-magnesite, french-jet, reconstructed-turquoise, slocum-stone, vulcanite DB rebuilt: 159 families, 216 expressions. All 131 tests pass. All values verified against Gem-A, Journal of Gemmology, G&G, Read 7th ed., or Mindat.
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Context
Follow-up to the audit-corrections campaign (PR #3, fixed errors).
This PR closes the content gaps identified by the May 2026 Gem-A FGA Foundation + Diploma syllabus audit (
~/Downloads/gema-coverage-audit/gap-report.md).Foundation coverage 72%→~100%; Diploma coverage 47%→≥80%.
What's added
Natural minerals (23) — Foundation secondaries + Diploma extension:
ametrine, andalusite, benitoite, bronzite, chrome-diopside, chrysocolla, coral, goshenite, hauyne, hematite, hydrogrossular, jet, kornerupine, maw-sit-sit, maxixe-beryl, moldavite, musgravite, obsidian, scapolite, serpentine, sinhalite, star-diopside, taaffeite
Synthetics (6):
synthetic-alexandrite-flux, synthetic-alexandrite-hydrothermal, synthetic-emerald-lechleitner, synthetic-ruby-hydrothermal, synthetic-ruby-kashan-flux, synthetic-sapphire-czochralski
Simulants (9):
ambroid, bone, copal, dyed-howlite, dyed-magnesite, french-jet, reconstructed-turquoise, slocum-stone, vulcanite
Pipeline
research-synthesist(10 agents, 4 waves) →citation-verifier(218 claims reviewed) → builders (parallel, file-locked scopes). Source priority: Gem-A → peer-reviewed (Journal of Gemmology, G&G) → Webster/Read 7th ed. → Mindat. Source-of-truth manifest:~/Downloads/gema-content-research/VERIFIED.md.Validation
pytest: 131 tests passmineral-db --infospot-checks: andalusite, scapolite, benitoite, chrysocolla, moldavite, coral, obsidian, hematite, jet — all return datamineral-db --counterparts rubynow lists Kashan + hydrothermalmineral-db --counterparts alexandritenow lists flux + hydrothermalEach new YAML carries CDL + per-directory convention compliance (bare numerics + block lists in
minerals/; quoted + flow lists insynthetics//simulants/).