Mineral Properties

Smell- sulphur smells like eggs
Color- 

• white, pale, or gray- calcite, feldspar, flourite, gypsum, muscovite, quartz, sulphur, talc
• black or gray- magnetite, hematite, pyrite
• reddish brown- hematite
  

Light transmission- 

• a lot of light- muscovite, calcite, quartz,
• a little light- flourite, gypsum
• no light- feldspar, magnetite, hematite, sulphur, talc, pyrite

Luster-

• metallic- hematite, magnetite
• non-metallic- dull (gypsum, chlorite), waxy( sulphur), pearly (talc), glassy (quartz, calcite, feldspar, flourite, hornblende)

Hardness-

• soft (can be scratched by a penny)- talc (softest), calcite (to medium), gypsum, muscovite, sulphur, chlorite
• medium (cannot be scratched by a penny, but can be scratched by an iron nail)- feldspar (medium to hard), flourite, hematite, calcite, hornblende, magnetite, pyrite
• hard (cannot be scratched by a penny or a nail)- quartz 

Magnetic-

• magnetite- positive
• all others- negative

Shape-

• crystal form (cleavage)- muscovite (layers), flourite, hornblende (cubes)

• no form (fracture)- feldspar, gypsum, magnetite, hematite, talc, quartz, calcite, sulphur

Halite

Satin Spar

Gypsum

Quartz