Heliophyllite

Yellow spherical aggregates in cavities in slag
Origin: Pacha Limani, Laurion, Greece
Sample size: 2.5 x 4 cm micromount
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

  
Tiny yellow crystals to 0.1 mm in small 4mm vug.
  
From slag deposits. Micro yellow blocky crystals to less than 0.2mm in vugs
Origin: Laurion, Atika, Greece
Sample size: 15 x 5 x 8 mm (top), 2 x 1.5 x 1 cm (bottom)
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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