Country origin record
Nigeria
Country record supporting sourced Batch 1 gemstone locations.
Evidence-backed overview
A country in the gemstone graph
Country record supporting sourced Batch 1 gemstone locations.
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
Published locality records document this gemstone within the country.
Open the individual locality record for the dated production evidence and scope.
Aquamarine
Published locality records document this gemstone within the country.
Open the individual locality record for the dated production evidence and scope.
Within this country
Published places
Nigeria Aquamarine Pegmatites
Nigeria is a documented source of Aquamarine, including saturated smaller material.
AquamarineOpen recordNigeria Cuprian Tourmaline Deposits
Nigeria is a documented source of copper-bearing blue-to-green Tourmaline used in Paraíba-type origin research.
TourmalineOpen recordEvidence 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]Aquamarine Quality Factors.
Gemological Institute of America
View authoritative source - [2]Yusuke Katsurada, Ziyin Sun, Christopher M. Breeding, and Barbara L. Dutrow. Geographic Origin Determination of Paraíba Tourmaline.
Gems & Gemology · 2019
View authoritative source