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Sulfide minerals

By Coastal and Marine Hazards and Resources Program 2018 (approx.)
sphalerite, cubes of pyrite, and covellite
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Detailed Description

Examples of sulfide minerals that occur at hydrothermal vents and are being studied by Amy Gartman: (left to right) sphalerite, an ore of zinc that often contains iron ([Zn,Fe]S); cubes of pyrite, rich in iron (FeS2); and covellite, containing copper and sulfur (CuS).The pyrite cubes are a little more than half an inch on a side.

Sources/Usage

Public Domain.