Identifying Rocks : Identifying Metamorphic Rocks

Metamorphic rocks are formed from the remelting and recrystallization of protolyth rocks, such as igneous and sedimentary rocks. Learn about the typical metamorphic characteristic of banding with help from a lab manager and research scientist in this free video on identifying rocks.

Expert: Jane Stammer
Bio: Jane Stammer is a lab manager and research scientist in the Advanced Mineralogy Research Center at the Colorado School Of Mines. Stammer has a master's degree in geology.
Filmmaker: Clay Roberts

[warumbel]

How to identify Metamorphic Rocks: 

THEY'RE BANDED !

- end of video

[Parsa]

A bit confusing that you show two igneous parent rocks.... Placing the parent and the metamorphic rock next to each other with arrows would be nice. What about non-foliated rocks like marble? What about looking at a low to high grade sequence like shale to slate to phyllite to a clay schist to gneiss?

[VFXJeff]

From what I've learned metamorphic rock does not melt. It is formed by massive pressure and temperature yet retains a solid state. Melted rocks are igneous rocks. I'm in a geology class and our professor goes nuts if we fail to make the distinction. Am I missing something?

[imdabomliketictock]

haha, i have a test in this crap tomorrow. wish me luck! :)

[austinkrafft]

Last time i checked diorite and granite were igneous. Leave it to eHow....

[ravikumar-ndju]

Wrong concept.Metamorphic rocks are not formed from remelting of other rocks.Remelting will produce magma which on solidification will form igneous rocks.The metamorphic changes take place in the solid state.Please correct your conept.

[SharkysShop]

Umm.. It's not technically melted. If you want to learn about geology, visit my channel. LOL.