#

Texture
(aphanitic, phaneritic, porphyritic, etc.)

List the Minerals visible
(if rock is glassy or aphanitic, you may need to indicate "none visible")

Color index
(give % dark minerals)

Rock name

Interpretations

Cooling rate
(fast, slow, mixed, etc.)

Is this rock intrusive or extrusive?

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17