Garronite

White garronite crystals to 8 mm in basalt
Origin: Galboly, Garron County, Antrim, Ireland
Sample size: 3 x 2 x 2 cm
 
 
Origin: Galboly, Garron County, Antrim, Ireland
Sample size: around 9 x 7 cm
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    • Photo courtesy of: 

    Tom Loomis

    Dakota Matrix Minerals

     

    Radiating crystal aggregates completely filling amygdules
    Origin: S. Giorgio, Fara, Vicenza, Italy
    Sample size: 1.5 x 2 cm matrix
     
    White radiating aggregates and massive filling amygdules in basalt
    Origin: Thurston Co., Washington, U.S.A.
    Sample size: 3 x 4 cm

    Photo courtesy of: 

    Diederik Visser

    Diederik Visser Minerals & Petrological Services

     

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