Mineralogy Review: lattice planes, crystal systems, and symmetry
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/21
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
22 Terms
What kind of plane lattice is this?
Square
What kind of plane lattice is this?
Rectangle
What kind of plane lattice is this?
Diamond
Hexagonal
What kind of plane lattice is this?
Oblique
What kind of crystal system is this?
Cubic
What kind of crystal system is this?
Rhombohedral
What kind of crystal system is this?
Hexagonal
What kind of crystal system is this?
Tetragonal
What kind of crystal system is this?
Orthorhombic
What kind of crystal system is this?
Monoclinic
What kind of crystal system is this?
Triclinic
What are soft brackets () used for in notation?
Identifying planes/crystal faces
Whar are hard brackets [] used for in notation?
Identifying lattice direction.
What are fancy brackets {} used for in notation?
Identifying a family of lattice planes.
What are the common symmetry elements for a triclinic crystal?
One fold rotation with or without inversion.
What are the common symmetry elements for a monoclinic crystal?
Two fold rotation axis and/or a single mirror.
What are the common symmetry elements for a orthorhombic crystal?
Three 2 fold rotation axes, or two mirrors and a two fold axis.
What are the common symmetry elements for a tetragonal crystal?
Single 4 fold rotation or rotoinversion axis.
What are the common symmetry elements for a trigonal division-hexagonal crystal?
One 3 fold rotation axis.
What are the common symmetry elements for a hexagonal division-hexagonal crystal?
One 6 fold rotation axis.
What are the common symmetry elements for a isometric crystal?
Four 3-fold rotation axes oriented diagonally through the center of the unit cell from corner to corner.