Metamorphic Rock ID
Sample
Number
Texture
Visible minerals
Other identifying
characteristics (grain
size, color, hardness,
luster of minerals,
texture, …)
Parent Rock
Rock
Name
Foliated or non-
foliated?
If foliated, describe texture
(Gneissic, schistose, phyllitic,
slaty).
1
Non-foliated
Quartz, blue kyanite
Tanish, with blue, Quartz sandstone
Kyanite quartzite
2 (06)
Foliated Schistose
Mica, feldspars, and quartz
No HCI reaction, Hardness: slight scratch
Shale
Schist
3 (05)
Foliated
Schistose Mica, feldspars
Slight HCI reaction
hardness: yes
grainy
Shale
Schist 4 (02)
Foliated
Slaty Mica No HCI reaction, darkish grey, slightly scratches glass
Shale
Slate 5 (03)
Foliated
Gneissic
Micas, feldspars, and quartz
Has layered texture, greys whites, some brown
Silicic Gneiss
6 (07)
Foliated Schistose Quartz, mica
Hardness: no, reflective, greyish, no HCI reaction
Shale
Schist 7
Non-foliated
Coal Deep black
Peat and lignite
Anthracite Coal
8 (01)
Non-foliated
Quartz
No HCI reaction, little bits of green
Quartz sandstone Quartzite 9 (04)
Non-foliated Calcite HCI reaction, white, pink
Limestone
Marble
10
Foliated
Phyllitic Mica, quartz Wavy surface, browns, white, layered
Shale
Phyllite Note that the names of samples 1 and 7 are already shown on the website. 60 pts total, 0.5 pts per correct observation, 1pt per correct ID (rock name).
**
Some rocks appear more than once!!**
