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What are the two changes of a rock of metamorphism?
When rock changes into metamorphic rock, its appearance, texture, crystal structure, and mineral content change.
What is mineral alignment?
the alignment of a mineral structure
Is calcite a mineral and why?
By definition, a mineral must have a definite crystalline structure. Calcite has this. Glass is amorphous, meaning it does not have such a structure.
Is coal not a mineral because it has a crystal structure?
No. Coal is not a mineral for two reasons: it lacks a crystal structure and it is organic.
What are propertys of rock?
Hardness, resistance to weathering, texture, mineral composition, color, and porosity.
What weathering alter the internal structure of minerals by removing and or adding elements?
Chemical weathering alters the internal structure of minerals by removing or adding elements through processes like dissolution, hydration, oxidation, and hydrolysis. This changes the mineral composition and may lead to the formation of new minerals.
Which property is least likely to be affected by weathering of the mineral?
The property least likely to be affected by weathering of a mineral is its crystal structure. While weathering can alter other characteristics such as color, hardness, and luster due to physical or chemical changes, the fundamental arrangement of atoms in the crystal lattice remains largely intact unless the mineral is completely broken down. This stability in crystal structure allows the mineral to retain its identity despite surface alterations.
What is the changes of the appearance structure and the composition of a rock?
Changes in the appearance structure and composition of a rock can occur due to weathering, erosion, and metamorphism. Weathering can break down the rock into smaller pieces, while erosion can transport these pieces to new locations. Metamorphism can alter the mineral composition and structure of the rock through heat and pressure, resulting in the formation of new minerals and textures.
Can same mineral have different internal structure?
yes
What causes physical weathering but not chemical weathering?
Physical weathering is caused by mechanical forces such as temperature changes, frost wedging, and abrasion, while chemical weathering involves the breakdown of rock through chemical reactions like oxidation and hydrolysis. Physical weathering does not change the chemical composition of the rock, whereas chemical weathering alters the mineral structure.
What does the internal atomic structure of a mineral most likely determine?
The internal atomic structure of a mineral most likely determines its physical and chemical properties, such as hardness, color, cleavage, and crystal shape. It also influences how the mineral interacts with its environment and how it behaves in different conditions.
How does the internal structure of a mineral relate to its external appearance?
The internal structure of a mineral, characterized by its crystal lattice arrangement and chemical composition, directly influences its external appearance, including color, luster, and shape. For instance, the symmetry and bonding of atoms within a mineral determine its crystal form, which manifests as distinct geometric shapes on the outside. Additionally, impurities and defects in the internal structure can affect color and transparency, further impacting how the mineral is perceived visually. Therefore, understanding a mineral's internal structure is key to explaining its external characteristics.
What type of weathering changes the mineral composition of rocks?
Chemical weathering changes the mineral composition of rocks by altering the chemical composition of minerals through processes like hydration, oxidation, and dissolution. This can result in the breakdown of minerals and the formation of new minerals.
What determines the type of crystal structure in a mineral?
The internal arrangement of atoms.
How go you get the mineral amber?
Amber is not a mineral, because it has an organic origin and amorphous structure (no orderly internal arrangement of atoms).
This type of weathering has no chemical changes?
Physical weathering is a type of weathering that does not involve any chemical changes to the rock or mineral. It occurs through processes like freezing and thawing, which break down rocks into smaller pieces without altering their composition.
Minerals resistant to chemical weathering?
Quartz is a mineral that is highly resistant to chemical weathering. Marble is a mineral that is more susceptible to chemical weathering.
