Thorium Vicanite
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3D3DVicanite.
This small mineral is from the Vica Complex, Tre Croci, Italy, says the label. I bought it for its thorium content.
Source: eBay seller ley646
Contributor: Theodore Gray
Acquired: 20 September, 2005
Price: $15.50
Size: 0.5"
Composition: (Ca, Ce, La, Th)15As(AsNa)FeSi6B4O40F7
Thorium