Exploring the Metamorphic Rock Chart

This podcast episode from Homk Middle School's Earth Science Department reviews the metamorphic rock chart found on page seven of the reference table. It explains the division of rocks into foliated and non-foliated categories, detailing their characteristics such as texture, grain size, composition, and types of metamorphism. The episode further explores specific examples of foliated rocks like slate, phyllite, schist, and gneiss, as well as non-foliated rocks like anthracite, hornfels, quartzite, and marble.

What are the two main categories of metamorphic rocks?

• Igneous and Sedimentary

• Foliated and Non-Foliated

• Granular and Crystalline

• Layered and Non-Layered

Which characteristic describes the visual size of the crystals in a rock?

• Type of Metamorphism

• Grain Size

• Composition

• Texture

What type of foliation does slate exhibit?

• Banding

• Mineral Alignment

• Random Orientation

• No Foliation

Which rock is formed from the metamorphism of shale?

• Anthracite Coal

• Slate

• Quartzite

• Marble

What minerals are found in phyllite?

• Only Mica

• Quartz, Feldspar, Mica, and Garnet

• Calcite and Dolomite

• Pyroxene and Olivine

Which rock has the highest grade of metamorphism among foliated rocks?

• Slate

• Phyllite

• Gneiss

• Schist

What is the primary composition of anthracite coal?

• Iron Oxide

• Calcium Carbonate

• Carbon

• Silica

Which rock is formed from the metamorphism of quartz sandstone?

• Hornfels

• Marble

• Slate

• Quartzite

What type of metamorphism forms hornfels?

• Dynamic Metamorphism

• Contact Metamorphism

• Regional Metamorphism

• Hydrothermal Metamorphism

Which rock is formed from the metamorphism of limestone?

• Quartzite

• Marble

• Slate

• Schist