STEPHANITE can be so black that it seems to absorb all light and in other conditions it has a dark blue cast.
The ARGENTITE mineral is often a light to medium gray in translucent rock material such as quartz.
Stephanite and Argentite are minerals of silver as noted in the store and museum placards.
\\+// MINERALOGY. . .\\+// SPECIMEN IDENTIFICATION
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\\+// COINAGE, MONEY. . .\\+// NUMISMATIC
\\+// HISTORY. . .\\+// LINK LIBRARY
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