Montebrasite

 

Origin: Newry, Oxford Co, Maine, U.S.A.

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

  

Montebrasite crystal with cover of up to 0.5 mm kosnarite crystals

Origin: Limoeiro mine, Minas Gerais, Brazil

Sample size: 14 x 8 x 6 cm

 

  

 

Honey yellow crystal showing several faces, some covered by the albite matrix.

  

Several tabular honey yellow crystals of montebrasite to 8 mm throughout albite matrix.

  

Honey yellow, large, well-formed, striated crystal to 2.5 cm. There are actually two crystals on this but they have seem to grown together in between the albite matrix.

  

Twin

  

Twin

Origin: Telirio mine, Linopolis, Minas Gerais, Brazil

Sample size: 5 x 4.5 x 2 cm (top), 3 x 2.5 x 2 cm (2nd row), 3 x 3 x 3 cm (3rd row), 4 x 3.5 x 3 cm (2nd row), 3 x 2 x 1.5 cm (3rd/4th row), 4 x 2 x 2 cm (5th/bottom row)

 

  

Large faint yellow tabular crystal showing several faces, twinned, with some attached albite and tiny 1 mm eosphorite crystals.

Origin: Faenda Pomaroli, Linopolis, Divino das Laranjeiras, Minas Gerais, Brazil

Sample size: 5 x 4.5 x 1 cm

 

Photo courtesy of: 

  

Montebrasite twin with kosnarite

Origin: Jenipapo district, Itinga, Minas Gerais, Brazil

Sample size: 8.5 x 7 x 3 cm
 

  

Montebrasite twin on feldspar

Origin: Linopolis, Minas Gerais, Brazil

Sample size: 9 x 6 x 1.5 cm

 

Photo courtesy of: 

Origin: Buranga Pegmatite, Rwanda

Sample size: miniature

 

Colourles white crystalline masses with apatite

Origin: Viitaniemi, Finland

Sample size: 2.5 x 5 cm

 

Photo courtesy of: