What are the importance of metamorphic rock to humans and to the environment?
Table of Contents
What are the importance of metamorphic rock to humans and to the environment?
valuable, because metamorphic minerals and rocks have economic value. For example, slate and marble are building materials, garnets are used as gemstones and abrasives, talc is used in cosmetics, paints, and lubricants, and asbestos is used for insulation and fireproofing.
Which metamorphic rocks have traditionally been used as a building and landscape material?
Quartzite and marble are the most commonly used metamorphic rocks. They are frequently chosen for building materials and artwork. Marble is used for statues and decorative items like vases (Figure).
Is quartzite contact or regional metamorphism?
Metamorphic rocks produced by contact metamorphism are not foliated, as the major factor here involves heat rather than pressure….
| Summary Chart of Common Metamorphic Rocks | Original Rocks | sandstone |
|---|---|---|
| Metamorphic Equivalent | quartzite | |
| Foliated? | no | |
| Metamorphism | regional & contact |
Is quartzite foliated or non foliated?
Some examples of non-foliated metamorphic rocks are marble, quartzite, and hornfels.
What is the purpose of metamorphism?
Metamorphism is a process that changes preexisting rocks into new forms because of increases in temperature, pressure, and chemically active fluids. Metamorphism may affect igneous, sedimentary, or other metamorphic rocks.
How are metamorphic rocks used in construction?
Uses of Metamorphic Rocks Quartzite and marble are commonly used for building materials and artwork. Quartzite is very hard and is often crushed and used in building railroad tracks (see Figure below). Schist and slate are sometimes used as building and landscape materials.
What metamorphic grade is quartzite?
Variable
Quartzite
| Type | Metamorphic Rock |
|---|---|
| Miscellaneous | Interlocking grains |
| Metamorphic Type | Regional or Contact |
| Metamorphic Grade | Variable |
| Parent Rock | Quartz Sandstone |
What can quartzite be used for?
Pure quartzites are a source of silica for metallurgical purposes and for the manufacture of silica brick. Quartzite is also quarried for paving blocks, riprap, road metal (crushed stone), railroad ballast, and roofing granules.