Metamorphic
What is Metamorphic?
Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock (protolith) is subjected to heat (temperatures greater than 150 - 200 ℃) and pressure (100 megapascals (1,000 bar) or more), causing profound physical or chemical change. The protolith may be a sedimentary, igneous, or existing metamorphic rock.
Metamorphic Market Value Calculator
Estimate the market value of Metamorphic using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Metamorphic Localities Map
See where Metamorphic is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
Quick Facts
FREE APP
4.7

Identify Metamorphic Instantly
- Snap a photo, get instant results
- 6,700+ rocks, minerals & crystals
- Discover collecting spots near you