Gemstone district
Mozambique Cuprian Tourmaline Deposits
Mozambique is a documented source of copper-bearing blue-to-green Tourmaline used in Paraíba-type origin research.
Evidence-backed overview
The place, clearly defined
Mozambique is a documented source of copper-bearing blue-to-green Tourmaline used in Paraíba-type origin research.
Geological context
How the occurrence is understood
Mozambique is a documented source of copper-bearing blue-to-green Tourmaline used in Paraíba-type origin research.
Bidirectional relationships
Documented gemstones
Occurrence and production are separate claims. A production label is date-bounded and does not guarantee quality, origin determination, or market value.
Tourmaline
Authoritative evidence documents this gem at the location; this does not by itself imply commercial production.
Occurrence is documented, but production status has not been assessed.
Evidence ledger
Sources & verification
Sources are deduplicated across the geographic record. Current-production claims receive explicit review dates; a map point never substitutes for geological or production evidence.
- [1]Yusuke Katsurada, Ziyin Sun, Christopher M. Breeding, and Barbara L. Dutrow. Geographic Origin Determination of Paraíba Tourmaline.
Gems & Gemology · 2019
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