Podcast
Questions and Answers
What is the term used to describe the four fundamentally different shapes in plane lattices?
What is the term used to describe the four fundamentally different shapes in plane lattices?
- Space lattices
- Crystal axes
- Unit meshes (correct)
- Lattice nodes
Which type of unit mesh is found in the diamond plane lattice?
Which type of unit mesh is found in the diamond plane lattice?
- Regular
- Centered (c) (correct)
- Primitive (p)
- Irregular
What is the angle between the unit mesh axes labeled a and b?
What is the angle between the unit mesh axes labeled a and b?
- $120^{\ ext{o}}$
- $45^{\ ext{o}}$
- $90^{\circ}$ (correct)
- $60^{\ ext{o}}$
If lattice nodes are repeated in all three dimensions, what structure is formed?
If lattice nodes are repeated in all three dimensions, what structure is formed?
What is the term used for the volume outlined by lattice nodes in a space lattice?
What is the term used for the volume outlined by lattice nodes in a space lattice?
In crystallography, which of the following intersects at a point called the origin?
In crystallography, which of the following intersects at a point called the origin?
Which crystal system is identified by having lattice nodes only at the corners of the unit cell?
Which crystal system is identified by having lattice nodes only at the corners of the unit cell?
What type of symmetry operation deals with repeating motifs about a point?
What type of symmetry operation deals with repeating motifs about a point?
In which unit cell shape are lattice nodes found on the corners and at the center of each face?
In which unit cell shape are lattice nodes found on the corners and at the center of each face?
What are the three types of symmetry operations in crystallography?
What are the three types of symmetry operations in crystallography?
Which crystal system is identified by having an additional lattice node at the center of the unit cell?
Which crystal system is identified by having an additional lattice node at the center of the unit cell?
What do side-centered (C) unit cells contain in terms of lattice nodes?
What do side-centered (C) unit cells contain in terms of lattice nodes?
What term is used to describe well-formed crystal faces?
What term is used to describe well-formed crystal faces?
Which crystal system has a total of 15 different forms possible?
Which crystal system has a total of 15 different forms possible?
What term is used to describe crystals with length, width, and height that are about the same?
What term is used to describe crystals with length, width, and height that are about the same?
Which crystal habit term is used for crystals that are roughly book-shaped?
Which crystal habit term is used for crystals that are roughly book-shaped?
In crystallography, which term is used for crystals that are thin and elongate like a knife blade?
In crystallography, which term is used for crystals that are thin and elongate like a knife blade?
In which crystal system do the crystal forms consist of pedions, pinacoids, prisms, and pyramids?
In which crystal system do the crystal forms consist of pedions, pinacoids, prisms, and pyramids?
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