Table of Contents
- 1 Is density the same in all minerals?
- 2 How is a minerals density determined?
- 3 What is the relationship of one minerals density to another minerals density?
- 4 Why do minerals have different densities?
- 5 How do you identify peridotite?
- 6 Does a mineral have to be denser to be harder?
- 7 What refers to the relative density of a mineral?
- 8 What is the least dense mineral?
Is density the same in all minerals?
Density is one of several intrinsic physical properties of minerals that relate to the composition of the mineral and to the pattern in which the mineral’s atoms are arranged. “Intrinsic” means that the property is the same for the mineral no matter what the size or shape of the sample.
How is a minerals density determined?
Measure density by dividing the mass or weight of a sample by its volume. Written out, the formula for calculating density is: D = M/V, where D = density (g/mL), M = mass (g), and V = volume (mL). Record the density of each sample on your chart in grams per milliliter (g/mL).
On what does the density of a mineral depend?
What determines the DENSITY of a mineral? Density depends on the types of atoms and how the atoms are arranged in the crystal structure. The heavier atoms are and the more tightly packed they are, the higher the density of the mineral.
What is the relationship of one minerals density to another minerals density?
Specific gravity is a ratio of the density of a mineral sample to an equal volume of water. Since water’s density is about 1 gram per milliliter at room temperature, the specific gravity of each mineral is about equal to its density divided by one (1).
Why do minerals have different densities?
And if you know your igneous petrology, you will see that the more mafic (rich in magnesium and iron) a rock is, the greater its density. As you can see, rocks of the same type can have a range of densities. This is partly due to different rocks of the same type containing different proportions of minerals.
Is density and hardness the same thing?
pattern: hardness is roughly correlative with density. In addition, several pairs of polymorphs show the same trend: the more dense mineral is the harder mineral. One factor is the atomic weight of the mineral’s atoms.
How do you identify peridotite?
Classic peridotite is bright green with some specks of black, although most hand samples tend to be darker green. Peridotitic outcrops typically range from earthy bright yellow to dark green in color; this is because olivine is easily weathered to iddingsite.
Does a mineral have to be denser to be harder?
pattern: hardness is roughly correlative with density. In addition, several pairs of polymorphs show the same trend: the more dense mineral is the harder mineral. One reason is that density of a mineral, as we’ve seen, depends on many factors. One factor is the atomic weight of the mineral’s atoms.
How can you determine 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: D = M/V. Where D = density (g/mL), M= mass (g), and V=volume (mL) The mass of each sample is measured using a balance or electronic scale.
What refers to the relative density of a mineral?
The specific gravity (relative density) of a mineral is its weight compared to the weight of an equal volume of water; thus, a mineral with a specific gravity of 4 is four times heavier than water. Special instruments
What is the least dense mineral?
The lightest or least dense metal that is a pure element is lithium, which has a density of 0.534 g/cm 3.
How is the density of a mineral determined?
Specific Gravity, also known as SG, is a measurement that determines the density of minerals. Two minerals may be the same size, but their weight may be very different. The specific gravity of a mineral determines how heavy it is by its relative weight to water.