The Journal
Field notes from
the source.
Education, provenance, and perspective on Paraíba Tourmaline — written by the family that mines, cuts, and collects it.
July 10, 2026 · 3 min read
Brazil vs. Mozambique vs. Nigeria Paraiba Tourmaline
Compare Brazilian, Mozambique, and Nigerian Paraiba Tourmaline by origin, chemistry, color, documentation, and collector value.
Read articleJuly 8, 2026 · 3 min read
Nigerian Paraiba Tourmaline: The Overlooked Chapter
Nigerian Paraiba Tourmaline is part of the broader copper-bearing tourmaline story. Learn what collectors should know about origin and identification.
Read articleJuly 6, 2026 · 3 min read
Mozambique Paraiba Tourmaline: What Collectors Should Know
Mozambique Paraiba Tourmaline is an important part of the modern copper-bearing tourmaline market. Learn how to evaluate quality and documentation.
Read articleJuly 4, 2026 · 3 min read
Brazilian Paraiba Tourmaline: The Legacy of the Original Discovery
Brazilian Paraiba Tourmaline carries the legacy of the original discovery in Paraiba, Brazil. Learn why history, rarity, and documentation matter.
Read articleJuly 2, 2026 · 3 min read
Can Paraiba Tourmaline Come From Outside Brazil?
Paraiba Tourmaline was first mined in Brazil, but qualifying copper- and manganese-bearing material is also known from Nigeria and Mozambique.
Read articleJune 30, 2026 · 3 min read
Paraiba Tourmaline vs. Cuprian Tourmaline: Why Not Every Copper-Bearing Stone Qualifies
Cuprian tourmaline means copper-bearing tourmaline, but not every cuprian tourmaline qualifies as Paraiba Tourmaline. Learn the difference.
Read articleJune 28, 2026 · 3 min read
The Chemistry of Paraiba Tourmaline: Why Copper and Manganese Matter
The color of Paraiba Tourmaline is linked mainly to copper and manganese. Learn how chemistry supports identification and why testing matters.
Read articleJune 26, 2026 · 3 min read
Why Is Paraiba Tourmaline So Expensive? Rarity, Color, Origin, and Demand
Paraiba Tourmaline value depends on color, rarity, origin, treatment, size, clarity, documentation, and demand. Learn what serious buyers should evaluate.
Read articleJune 24, 2026 · 3 min read
What Is Paraiba Tourmaline? The Scientific Definition Behind the Neon Color
Paraiba Tourmaline is a copper- and manganese-bearing tourmaline known for vivid blue to green color. Learn the scientific definition and why it matters.
Read article