Brazilianite Value, Price, and Jewelry Information


brazilianite - linopolis
“Brazilianite,” Telirio Mine, Linopolis, Minas Gerais, Brazil. © Rob Lavinsky, www.iRocks.com. Used with permission.

Brazilianite's lovely green to yellow colors make it a must for gem collectors. Large faceted stones are often flawed, but smaller cut gems can make beautiful jewelry pieces.

Brazilianite Value

The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.

Brazilianite Value via Gem Price Guide
Faceted 1 carat plus
to /ct

See the entire Gem Price Guide.

Start an IGS Membership today for full access to our price guide (updated monthly).

Brazilianite Information

DataValue
NameBrazilianite
Crystallography Monoclinic. Crystals equant, prismatic, spear-shaped; also striated.
Colors Colorless, pale yellow, yellowish-green, greenish.
Luster Vitreous
Fracture Conchoidal. Brittle.
Hardness 5.5
Specific Gravity 2.980-2.995
Birefringence 0.019-0.021
Cleavage Good 1 direction.
Dispersion 0.014
Heat SensitivityYes
Luminescence None
Spectral Not diagnostic.
Transparency Translucent to transparent.
FormulaNaAl3(PO4)2(OH)4
Pleochroism Weak, merely a change in shade of color.
Optics α = 1.602; β = 1.609; γ = 1.621-1.623. Biaxial (+), 2V = 71°
EtymologyAfter Brazil, where the gem was first discovered.
OccurrenceHydrothermal mineral in pegmatitic cavities.
Brazilianite - faceted gems
Brazilianite: Brazil, (3.0, 2.7). Photo © Joel E. Arem, PhD, FGA. Used with permission.

Comments

Discovered in Brazil in 1944, large uncut brazilianite stones reside in many museums. Pieces such as these could yield large gems, but clean faceted gems over 15 carats are a great rarity. However, they make stunning crystal specimens.

Sources

Brazil, notably Conselheira Pena, Minas Gerais, remains the principal source of gem quality material in crystals up to large sizes. The Palermo Mine in Grafton, New Hampshire and sites in Yukon, Canada also yield fine but smaller specimens.

brazilianite - Conselheiro Pena, Brazil
“Brazilianite,” Conselheiro Pena, Doce Valley, Minas Gerais, Brazil, contains a minor muscovite inclusion. © Rob Lavinsky, www.iRocks.com. Used with permission.

Stone Sizes

Crystals from Brazil range in size up to 12 x 8 cm. Although some large gems have been cut, most gems range from 1-10 carats, or even smaller. Cut stones over 5 carats are scarce today.

  • American Museum of Natural History (New York): 23 (emerald cut, Brazil), 19 (round, yellow).
  • Smithsonian Institution (Washington, D.C): 41.9 and 17.0 (yellow, Brazil).
  • Private Collection: 24 (yellow, Brazil).
brazilianite - New Hampshire
“Brazilianite,” Palermo Mine, North Groton, New Hampshire, USA. © Rob Lavinsky, www.iRocks.com. Used with permission.

Care

Heating brazilianite gems up to 140º C/284º F can lead to color loss. Heating up to 300º C/572º F will turn them colorless. A jeweler’s torch will easily reach these temperatures, so be wary if you’re taking a jewelry piece for repairs. Although brazilianites have a moderate hardness, their cleavage and fracture tendency make protective settings and occasional wear good ideas. Avoid mechanical cleaning such as steam or ultrasonic processes. Instead, use a soft brush, mild detergent, and warm water for cleaning. Consult our gemstone jewelry cleaning guide for more recommendations.

brazilianite - Canada
“Brazilianite,” Rapid Creek, Yukon, Canada. © Rob Lavinsky, www.iRocks.com. Used with permission.