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Questions and Answers
What defines the internal structure of a mineral?
What defines the internal structure of a mineral?
- The minerals present in the same locality.
- The minerals' colour and luster.
- The mineral's origin and formation process.
- The arrangement of atoms within the mineral. (correct)
How do polymorphism and pseudomorphism differ?
How do polymorphism and pseudomorphism differ?
- Polymorphism is about similar compositions with different structures; pseudomorphism is about one mineral taking the form of another. (correct)
- Polymorphism refers to minerals with different compositions; pseudomorphism refers to altered minerals.
- Polymorphism is the same as chemical composition; pseudomorphism refers to color changes.
- Both refer to the same phenomenon of mineral changes over time.
Which of the following is an example of a physical property of minerals?
Which of the following is an example of a physical property of minerals?
- The mineral's geological history.
- Chemical stability over time.
- Color and hardness. (correct)
- The internal arrangement of particles.
Which statement correctly describes associated minerals?
Which statement correctly describes associated minerals?
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Which fossil types are mentioned in the document?
Which fossil types are mentioned in the document?
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Study Notes
Mineral Characteristics
- Minerals have internal structures that are unique to each mineral
- Minerals have a crystalline structure, which is visible under a microscope
- Each mineral can have a unique chemical composition that is specific to that mineral
- Minerals have physical properties such as color, hardness, and cleavage, all of which are unique
- Some minerals have the same chemical compositions but different crystalline structures, which is called Polymorphism
- Pseudomorphism is when a mineral takes on the characteristics of another mineral
- Even minerals that have the same composition can show different habits (appearance)
- Some minerals have specific structures, including single-chain or double-chain structures
- Associated minerals are found in the same geological location
- Fossils such as Fugichoria and Folibuccia can indicate the type of mineral present
Preservation of Fossils
- Pleistocene fossils are preserved in the Pleistocene epoch
- Examples of preserved Pleistocene fossil mammals include Rhiinoceroes and Plemmmoths
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