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Geo- Mineral Properties and Identification

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-light brown streak
-sulfur smell

-heavy palm weight
-cubic cleavage
-metallic dark grey streak

-scratch with fingernail
-chalky white streak
-layered sheets of cleavage

-metallic
-auburn streak

-90 degree cleavage
-white chalky streak

-messy
-pencil material

-octahedral cleavage
-color from inside out
-varies colors

-magnetic

-extremely light palm-weight
-powdery material

-red/orange streak
-earthy luster

-lacks 90 degree cleavage
-highly reactive to acid

-cubic cleavage
-"fools gold"

-scratches glass
-no defined cleavage

-flakes off
-1 cleavage set

-barely scratches glass
-salmon pink

-close to 90 degree cleavage
-no streak
-can be greenish

-no cleavage
-olive green color

-soapy feeling
-pearly luster

-striations present
-no streak
-reflects light

-flaky
-1 cleavage set

-tight planes
-unique light pattern

-striations on face
-no streak

-scratches glass
-no cleavage

-dodecahedron
-no streak
-red undertone