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Minerals are classified into named groups based on:

Seismic waves abruptly change speed at something we call the Mohorovicic discontinuity, or simple “the Moho”. It is considered to be __________

Which type of plate boundary is the San Andreas Fault?

All of the following are true about the magnetic north pole except:

Silicates have many ways that they can form networks of tetrahedra. Which of these does NOT appear in silicate minerals?

Where can plate boundaries be located?

Tell me the different things that are common cements which hold the grains together in sedimentary rocks. Which one will react with acid?

In the seafloor, the rock areas with negative magnetic anomalies were formed when the Earth’s magnetic field was:

Minerals in geodes are often pretty and well formed, with smooth surfaces. They can be described as:

How can you tell the hardness of a mineral?