rock specimen

  1. Valleriite ugg on Pyrite Peacock!

    so we have a ton of Valleriite on the new vein and its annoying but fun,, comes off like makeup..just thought I'd share. General Valleriite Information Chemical Formula: 4(Fe,Cu)Sā€¢3(Mg,Al)(OH)2 Composition: Molecular Weight = 475.92 gm Magnesium 8.68 % Mg Aluminum 7.37 % Al...