Changes

[[Crystal]] with faces that are [[hollow]]ed as in the "stepped" faces of some [[halite]] crystals.

[[Image:Bismuth_hopper_crystal.jpg|thumb|250px|A hopper crystal of metallic bismuth]]

 

A '''Hopper [[crystal]]''' is one with faces that are [[hollow]]ed as in the "stepped" faces of some [[halite]] crystals.

=Sources=

=Sources=

*Pellant, Chris. ''The Complete Book of Rocks and Minerals'', Dorling Kindersley Inc.: New York (1995)

*Pellant, Chris. ''The Complete Book of Rocks and Minerals'', Dorling Kindersley Inc.: New York (1995), ''p. 251''

[[category:geology]]

[[category:Crystallography]]