Mystery of the Golden Cube


Crystal shapes
Mineral crystals form distinct shapes, depending on their structure. Figuring out which shape can help you identify the mineral. (These shapes may not always be easy to see without a special microscope, especially if the mineral grows in groups.)

Mica Quartz Apatite

Mica forms in sheets

Quartz can crystalize as a pyramid
Apatite forms six-sided columns (hexagon)

Flourite Calcite
Fluorite crystals may form as cubes
Calcite can crystalize in a dog-tooth shape


Now, what kind of crystal shape does our cool object have? I'll give you one guess!



© The Children's Museum of Indianapolis, 2000

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