Sample 10: This sample has: a. no cleavage (it fractures) b. 1 cleavage plane c. 2 cleavage plan

step 1 So here we are given the, so for each x value we have probability of x equal to 1 is 0 .3, proba

Sample 10: This sample has: a. no cleavage (it fractures) b....

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Key Concepts

Cleavage Planes and Angles

The number, orientation, and angular relationship of cleavage planes are critical in understanding a mineral's crystallographic symmetry. Cleavage planes that meet at specific angles, such as 90 degrees, often indicate a high degree of symmetry in the crystal lattice. Analyzing these planes helps in determining the mineral's crystal system and can be a key factor in mineral classification and identification.

Fracture

Fracture refers to the way a mineral breaks when it does not exhibit cleavage. Instead of breaking along well-defined planes, a mineral with fracture will break along irregular, curved, or conchoidal surfaces. Fracture patterns are important in mineral identification and can provide additional information about the physical properties and internal structure of the material.

Cleavage

Cleavage is a property of minerals that describes the tendency to break along flat, parallel planes of weakness in their crystal structure. These planes result from the arrangement and bonding of atoms within the crystal lattice, and cleavage is a diagnostic feature used to help identify and classify minerals. The quality and angle of cleavage can vary, providing clues about the underlying symmetry and atomic structure of the mineral.

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