Unknown Samples

Image credit: Scott Brande

Unknown Samples

• representative of 'student grade' samples - NOT museum quality
• not all physical properties are demonstrated in all samples
• properties demonstrated limited to those viewable online
• no answer key on website
• additions considered upon email request

Unknown Rock Samples

Unknown Metamorphic Minerals

Unknown Protoliths

Protolith means a parent rock that has been transformed into a metamorphic rock. Protoliths can be any rock type - igneous, sedimentary, or even a pre-existing metamorphic rock. Some examples of unknown protoliths are shown below.