MMSN8 -N. Comstock High Grade Silver-Gold Ore

NATIVE GOLD, visible gold, can be seen as clusters of dots in this high grade ore sample of Au and Ag.

Dark and light gray minerals are often high grade silver minerals as noted in the placard. Visible free gold is in numerous specimens. Yellowish-orange colored quartz like portions can be "Electrum", a natural alloy of gold and silver. High grade Electrum was used by the Roman Empire to make their coinage.

Typical minerals of the north Comstock: Argentite, Stephanite, Electrum and native Gold.
Stephanite often so black seeming to absorb all light and in other conditions it it has a dark blue cast.
Argentite is often a light to medium gray. Stephanite and Argentite are minerals of silver.
Electrum is a natural alloy of gold and silver having golden coloration in transparent material like quartz.
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