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Identify Your Specimens with This Master Photo Guide
Tips on Where to Look and What to Look For
Take a closer look at the 12 most common purple, blue, and violet minerals on Earth.
The most common and significant ones
Identification Is Easier When You Know What to Look For
This list includes, primarily, minerals that form crystals, or at least solid grains for which red or pink is the default color.
This list will help you with identification.
Habits are the distinctive form that mineral crystals may take in different geologic settings.
This gallery shows the major types of luster, which range from metallic to dull.
While most minerals have a white streak, a few well-known minerals can be identified by the color of their streak.
Let’s look at the basic elements that make up the science of geology.