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LUNTHRA

Lunthra

Journal

Short explainers of the science on the plates, and guides for choosing one. New pieces with every series.

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Why Crystals Have Flat Faces

A crystal's shape is its lattice showing through. How habit, cleavage and growth rate decide what pyrite, fluorite, bismuth and native copper look like, and what euhedral means.


Explainer · Euhedral
5 min