15 Questions
What is a crystal at a microscopic level?
A collection of molecules in the same arrangement throughout the material
What is the name of the contributing part that is repeated to form a crystal?
Unit cell
What determines the different shapes in which crystals grow?
The arrangement of atoms, molecules, or ions inside the unit cell
What is the primary reason for the different crystal formation shapes?
The pattern of the molecules
What are the components inside a unit cell dependent on?
The type of crystal
What color are Sodium (Na) atoms represented as in a 3D crystal arrangement?
Blue
What color are Chloride (Cl) atoms represented as in a 3D crystal arrangement?
Green
What factors affect the crystalline pattern and shape of a crystal?
The richness of the dissolved minerals, melted rock, and vapor
Why do atoms joining in the crystal structure generally follow the shape of the crystal that has already formed?
To maintain a consistent pattern and shape
How is mineral crystal habit defined?
By the microscopic appearance of crystals
Which type of crystals have apparent and well-formed faces with sharp angles?
Euhedral crystals
What mineral exhibits an octahedral habit?
Diamonds
Which mineral does NOT have a cubic habit?
Quartz
What is a characteristic feature of prismatic crystal habits?
Elongated prism-like crystals with opposite faces parallel to each other
Why are non-geometrical crystals rare in their development of regular geometric forms at the surface?
Because they do not have a regular geometric shape
Learn about the structure of crystals and how atoms, molecules, or ions are arranged in a highly ordered three-dimensional lattice. Explore the concept of unit cells and the different types of crystals.
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