Mineral Identification

Question	Answer
Image: Augite (binary/octet-stream)	augite/pyroxene- key feature: 2 directions of cleavage nearly 90 degrees
Image: Augite+2 (binary/octet-stream)	augite/pyroxene- key feature: 2 directions of cleavage nearly 90 degrees
Image: Biotite (binary/octet-stream)	biotite - key feature: peels into thin flakes, darker than muscovite
Image: Biotite2 (binary/octet-stream)	biotite - key feature: peels into thin flakes, darker than muscovite
Image: Calcite (binary/octet-stream)	calcite - key feature: reacts with acid
Image: Calcite+2 (binary/octet-stream)	calcite - key feature: reacts with acid
Image: Galena+2 (binary/octet-stream)	galena - key feature: cubic formations, heavy
Image: Galena+1 (binary/octet-stream)	galena - key feature: cubic formations, heavy
Image: Garnet+1 (binary/octet-stream)	garnet
Image: Garnet+2 (binary/octet-stream)	garnet
Image: Graphite+2 (binary/octet-stream)	graphite - key feature: can scratch with fingernail, writes like pencil lead
Image: Graphite+1 (binary/octet-stream)	graphite - key feature: can scratch with fingernail, writes like pencil lead
Image: Gypsum (binary/octet-stream)	gypsum - key feature: can scratch with fingernail
Image: Gypsum2 (binary/octet-stream)	gypsum - key feature: can scratch with fingernail
Image: Halite (binary/octet-stream)	halite - key feature: salty taste, 3- directional cleavage at 90 degrees (cubic)
Image: Halite+2 (binary/octet-stream)	halite - key feature: salty taste, 3- directional cleavage at 90 degrees (cubic)
Image: Hematite+1 (binary/octet-stream)	hematite - key feature: red streak, may be weakly magnetic
Image: Hematite2 (binary/octet-stream)	hematite - key feature: red streak, may be weakly magnetic
Image: Hornblende (binary/octet-stream)	hornblende/amphibole
Image: Hornblende+2 (binary/octet-stream)	hornblende/amphibole
Image: Magnetite1 (binary/octet-stream)	magnetite - key feature: magnetic
Image: Magnetite2 (binary/octet-stream)	magnetite - key feature: magnetic
Image: Muscovite1 (binary/octet-stream)	muscovite - key feature: peels into thin flakes, lighter in color than biotite
Image: Muscovite2 (binary/octet-stream)	muscovite - key feature: peels into thin flakes, lighter in color than biotite
Image: Olivine1 (binary/octet-stream)	olivine
Image: Olivine2 (binary/octet-stream)	olivine
Image: Orthoclase1 (binary/octet-stream)	orthoclase (or Potassium Feldspar)
Image: Orthoclase2 (binary/octet-stream)	orthoclase (or Potassium Feldspar)
Image: Plagioclase1 (binary/octet-stream)	plagioclase feldspar
Image: Plagioclase2 (binary/octet-stream)	plagioclase feldspar
Image: Pyrite1 (binary/octet-stream)	pyrite
Image: Pyrite2 (binary/octet-stream)	pyrite
Image: Quartz1 (binary/octet-stream)	quartz
Image: Quartz2 (binary/octet-stream)	quartz
Image: Talc1 (binary/octet-stream)	talc- key feature: soapy feel, softer than fingernail
Image: Talc2 (binary/octet-stream)	talc- key feature: soapy feel, softer than fingernail
Image: Specular1 (binary/octet-stream)	specular hematite
Image: Specular2 (binary/octet-stream)	specular hematite
Image: Fluorite (binary/octet-stream)	fluorite- key feature: cleaves into octahedrons
Image: Fluorite2 (binary/octet-stream)	fluorite- key feature: cleaves into octahedrons

Image: Augite (binary/octet-stream)

augite/pyroxene- key feature: 2 directions of cleavage nearly 90 degrees

Image: Augite+2 (binary/octet-stream)

augite/pyroxene- key feature: 2 directions of cleavage nearly 90 degrees

Image: Biotite (binary/octet-stream)

biotite - key feature: peels into thin flakes, darker than muscovite

Image: Biotite2 (binary/octet-stream)

biotite - key feature: peels into thin flakes, darker than muscovite

Image: Calcite (binary/octet-stream)

calcite - key feature: reacts with acid

Image: Calcite+2 (binary/octet-stream)

calcite - key feature: reacts with acid