EV-018 · v1 · Graphite America
Vein-hosted deposit with exceptionally high purity (typically 90%+ Cg in situ) but narr…
Vein-hosted deposit with exceptionally high purity (typically 90%+ Cg in situ) but narrow vein widths (0.3–1.2 meters) that limit mechanized extraction rates.
Under Review
Original Observation
No upstream observation on record — this evidence predates the Observation Bus, or was entered directly by an analyst.
Extracted Claim
Vein-hosted deposit with exceptionally high purity (typically 90%+ Cg in situ) but narrow vein widths (0.3–1.2 meters) that limit mechanized extraction rates.
Supporting Sources
Geological survey data
geologysourcing
Confidence
MediumReviewed by Research Analyst · Accepted 2026-03-04
Linked Entities
Linked Risks
Gulf Coast hurricane exposureMedium
Linked Constraints
No structural constraints linked.
Affected Scenarios
No scenarios reference this evidence.
Affected Decisions
Related Evidence
| ID | Notes | Confidence |
|---|---|---|
| EV-019 | Total estimated resource of approximately 400,000 tonnes — roughly 2% of the tonnage available from either Brazilian deposit — positioning this source as a high-purity specialty supplement, not a primary volume source. | Medium |
Timeline
2026-03-04Evidence Added
Evidence Imported
Sri Lanka Vein Deposit A reserve estimates are consistent with prior regional geological survey data.
by Research Analyst
Replay References