Haiweeite

  
Cluster of light yellow haiweeite around muscovite on microcline
    
Clusters of light yellow haiweeite with calcite, muscovite and microcline
  
 
  
 
  
Bright yellow, spheroidal crystals to 1 mm on quartz
  
 
  
Light yellow acicular tufts to 1 mm
  
 
  
Piece of haiweeite with several bright yellow tufts of acicular yellow sprays to 3 mm on calcite and fluorite associated with glassy yellow uranophane crystals to 1 mm.
  
Bright yellow radial sprays to 3 mm. Associations include yellow glassy uranophane crystals to 1 mm, fluorite and albite.
  
Bright yellow radial, acicular sprays of haiweeite to 3 mm on calcite and fluorite associated with glassy yellow uranophane.
Origin: Teófilo Otoni, Minas Gerais, Brazil
Sample size: 7 x 5 x 2 cm (top), 2 x 1 x 1 cm (2nd row), 4 x 3 x 2 cm (3rd row), 5 x 4 x 3 cm (4th row), 6 x 6 x 4 cm (5th row), 5 x 3 x 3 cm (6th row), 6 x 4.5 x 3 cm (7th row), 3 x 2.5 x 2.5 cm (8th row), 6 x 5 x 3.5 cm (9th row), 5 x 4.5 x 1 cm (10th row), 4.5 x 3.5 x 3 cm (bottom)
 
  
Faint to canary yellow "balls" to 0.3 mm composed of acicular radial sprays associated with glassy, bladed sprays of uranophane.
Origin: Valentine, Presidio Co., Texas, United States
Ex. DeVito Collection
Sample size: 3 x 2.5 x 1.5 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
 
  
Sprays of fine crystals of yellow haiweeite and calcite are situated on a chunk of smoky quartz
Origin: Teofilo Otoni, Minas Gerais, Brazil
Sample size: 5 x 3.9 cm (top), 5.5 x 2.8 cm (bottom)
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com


 

Yellow crust on quartz, SW UV green
Origin: Dara-i-Pioz, Tadjikistan
Sample size: 2 x 3 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

  
Origin: Margarita Mine, Chihuahua, Mexico
Sample size: 4.1 x 3.5 x 3.0 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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