The curve trace plots you can see on this site are made with an oscilloscope and are the amount of current that a substance allows to flow through it across a range of voltages (from -2.5V to 2.5V) unless otherwise specified.
All curve plots
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Arsenopyrite (Penlee Beach)
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Chalcocite (Penstruthal Mine)
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Galena (Ale & Cakes Mine)
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Pyrite (Carharrack Mine)
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Cassiterite (Wheal Unity Wood)
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Chalcocite (Wheal Prosper, razor cat's whisker)
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Cassiterite (Wheal Unity Wood, razor cat's whisker)
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Arsenopyrite (Penlee Beach, razor cat's whisker)
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Chalcocite (Penstruthal Mine, razor cat's whisker)
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Chalcopyrite (Ale & Cakes Mine) / Zincite (Poland) Perikon diode
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