Table of Contents
- 1 How do you think the hardness and density of a mineral that formed through metamorphism would compare to a mineral that formed through evaporation explained?
- 2 How could you determine whether an unknown substance is a mineral quizlet?
- 3 What is the best statement to describe adamantine luster?
- 4 Which is another way minerals are formed by?
How do you think the hardness and density of a mineral that formed through metamorphism would compare to a mineral that formed through evaporation explained?
Minerals that are formed through metamorphism have experienced intense heat and pressure that occur within the Earth’s surface. In this case, it should be harder and denser than those minerals that are formed through evaporation.
Is a substance is a mineral How could you identify what type of mineral it is?
You can identify a mineral by its appearance and other properties. The color and luster describe the appearance of a mineral, and streak describes the color of the powdered mineral. Mohs hardness scale is used to compare the hardness of minerals.
Do you think graphite would most likely display cleavage or fracture explain your answer?
It breaks along irregular surfaces because the bonds between its atoms are about the same strength in every direction. Fracture is a tendency to break into irregular pieces. In graphite, carbon atoms are arranged in layers. Graphite has cleavage because the weak bonds between the layers break easily.
How could you determine whether an unknown substance is a mineral quizlet?
Properties used to identify minerals are color, luster, cleavage, fracture, density, hardness, and special properties.
Why do you think some minerals are easier to identify than others?
The physical properties of minerals are related to their chemical composition and bonding. Some characteristics, such as a mineral’s hardness, are more useful for mineral identification. Color is readily observable and certainly obvious, but it is usually less reliable than other physical properties.
Does graphite have cleavage or fracture?
| Graphite | |
|---|---|
| Cleavage | Basal – perfect on {0001} |
| Fracture | Flaky, otherwise rough when not on cleavage |
| Tenacity | Flexible non-elastic, sectile |
| Mohs scale hardness | 1–3 |
What is the best statement to describe adamantine luster?
Adamantine – Transparent to translucent minerals with a high refractive index yield an adamantine luster, meaning they display extraordinary brilliance and shine.
How does metamorphism compare to the formation of evaporation?
How do you think that the hardness and density of a mineral that forms through metamorphism would compare to a mineral formed through evaporation? Metamorphism-because of the heat and pressure underground- would cause the chemicals to be squeezed together better than evaporation does
How can you tell the hardness of a mineral?
A rough measure of mineral hardness can be made by assembling a kit of handy objects (table 6). A fingernail has a hardness ranging from 2 to 2.5, a penny is a little harder than 3, window glass ranges from 5.5 to approximately 6 in hardness, and a knife blade is generally in the range of 5 to 6.5.
Which is another way minerals are formed by?
Minerals form by metamorphism, cooling of magma and lava, what’s another way mineral’s are formed by? Precipitating from solutions Properties used to identify minerals are color, luster, cleavage, fracture, density, hardness, and special properties.
How to calculate the density of a mineral?
To determine the actual density of a mineral, you divide the mass or weight of a sample by its volume. Written out, the formula for calculating density is: = M/V Where D = density (g/mL), M= mass (g), and V=volume (mL)