Which Group of Silicate Minerals Has Two Planes of Cleavage

question 39

Multiple Choice

Which group of silicate minerals has two planes of cleavage that are oriented at approximately 60° and 120°?

• A)Pyroxenes
• B)Potassium Feldspars
• C)Amphiboles
• D)Galena

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Definitions:

Psychodynamic Approach

A psychological theory that emphasizes unconscious processes and childhood experiences in shaping behavior and personality.

Social Interventions

Strategies or actions undertaken to modify social environments and relationships to improve health and wellbeing.

Structural Model

An abstract representation that illustrates the relationships between different variables and components within a specific phenomenon or system.

Family-Oriented Therapies

Therapeutic approaches that involve family members in the treatment process to address and improve the mental health and relationships within the family.