Olivine
Rock-forming mineral

H = 7

C = 0

usually green (light to dark)

granular

Lab 1

Calcite
Rock-forming mineral

H = 3

C = 3 (not at 90 degrees but in rhombs instead)

Reacts with HCL

Lab 1 

Halite
Rock-forming mineral

H = 2.5

C = 3 (at 90 degrees, makes cube shapes)

salty taste

usually transparent

Lab 1

Gypsum
Rock-forming mineral

H = 6

C = 1

Usually white

Lab 1 

Amphibole
Rock-forming mineral

H = 5 to 6

C = 2 (at 60 or 120 degrees)

Black or dark green

Lab 1

Muscovite
Rock-forming mineral

H = 2.5

C = 1 (sheets)

Almost metallic luster

Lab 1

Microcline
Rock-forming mineral

H = 6

C = 2

White, tan, pink

Exsolution bands

Lab 1

Plagioclase
Rock-forming mineral

H = 6

C = 2

Gray to white

Striations

Lab 1

Pyroxene
Rock-forming mineral

H = 5 to 6

C = 2 (at 90 degrees)

Black or dark green

Lab 1

Talc
Rock-forming mineral

H = 1

Greasy feel

White to pale green

Lab 1

Quartz
Rock-forming mineral

H = 7

C = 0

All colors

Six-sided crystals common

Lab 1

Biotite
Rock-forming mineral

H = 3

C = 1 (sheets)

Usually black

Lab 1