Metamorphic Rocks

Question 1

Quartzite

Answer 1

Non-Foliated – sand sized grains – Main minerals: quartz – Parent Rock: sandstone – Intermediate to High Grade

Question 2

Gneiss (pink and black)

Answer 2

Foliated – crystalline med. To coarse grain – Main minerals: feldspar, quartz – Parent rock: mudstone, shale, slate, phyllite, schist, granite, diorite – High grade

Question 3

Marble

Answer 3

Non-foliated – Med. to coarse microcrystalline grains – Main minerals: calcite (or dolomite) – Parent rock: limestone – Med. To high grade

Question 4

Slate

Answer 4

Foliated – fine to no grain – clay or volcanic ash - parent rock: mudstone or shale – Low grade

Question 5

Phyllite

Answer 5

Foliated – fine to no grain – main minerals: quartz, mica, chlorite – parent rock: mudstone, shale, slate – low grade

Question 6

Gneiss (black and white)

Answer 6

Foliated – med. To coarse sized grains – main minerals: amphibole, quartz – parent rock: mudstone, shale, slate, phyllite, schist, granite, diorite - high grade

Question 7

Garnet schist

Answer 7

Foliated – med. – coarse grain – main minerals: garnet, quartz, mica – parent rocks: mudstone, shale, slate, phyllite - Intermediate grade

Question 8

Tourmaline schist

Answer 8

Foliated – med to coarse grains – main minerals: Quartz, Mica, Tournaline – Parent rock: mudstone, shale, slate, phyllite – intermediate grade

Question 9

Mica Schist

Answer 9

Foliated – med. To coarse grain – main minerals: mica, quartz – parent rock: mudstone, shale, slate, phyllite – Intermediate grade

Question 10

Anthracite Coal

Answer 10

Non-foliated, fine to no grain – Main minerals: carbon – parent rock: peat, lignite, bituminous coal