Minerals: Sulfides
Minerals are defined by five criteria: 1. Naturally Occurring, 2. Inorganic, 3. Solid, 4. Defined Chemical (Atomic) Formula, and 5. A unique set of physical properties.
Sulfides
-are chemical compounds in which sulfur has combined with metallic and semi-metallic elements.
Galena
Galena Cluster
Galena
Galena cubes
Stilbnite
Pentameral Pyrite Crystal
Pyrite Cluster
Pyrite Cluster
Pyrite Cluster
Pyrite cube in Marl
Pyrite cube in Marl
Marcasite “sun disk”
Marcasite cluster
Chalcopyrite
Bornite
Sphalerite
Sphalerite
Sphalerite on Matrix
Sphalerite
Orpiment
Orpiment
Reaglar
Reaglar
Reaglar
Pyrrhotite
Marmatite
Molybdenite
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Data: Pellant, Chris. Smithsonian Handbooks: Rocks and Minerals, The clearest recognition guides avaiable. A Dorling Kindersley Book.