Cast, Not Carved · claim GEO-C569 · Observation rung · Materials analyses
The "polished" surfaces of the Saqqara Serapeum granite sarcophagi are a waterglass coating carbonated over time to amorphous silica — evidenced by drip marks on the underside of a displaced lid — rather than mechanical polishing.
source anchor
Fóti Ch 10, pp ~248–253
Evidence
No evidence records attached yet — this claim is held on its source anchor alone: the ledger knows where the proposition is stated and has admitted no observation behind it. A source is not evidence.
an honest empty state
This claim is in the ledger but not in the current edition's featured set. Nothing here has been assessed — that absence is information, not an oversight.
Still missing: plain-language gloss, credibility assessment, diagnosticity assessment, strongest objection, what would change our mind. A claim gains them when an edition features it and the edition's adopted assessment supplies the full treatment — a decision the panel reviews, not a field anyone flips.