# What is mineral density?

## What is mineral density?

The density of a mineral is the ratio of its mass to its volume. It is a measure of how much “stuff” is squeezed into the amount of space the mineral occupies. Objective: Students will measure and compare the densities of minerals.

Density is a word we use to describe how much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (its mass). If an object is heavy and compact, it has a high density. If an object is light and takes up a lot of space, it has a low density.

### How is density used to identify a mineral?

hardness for each mineral on the sheet. You can estimate the density of minerals by using your senses of sight and touch. You should be able to determine the relative density of the minerals by comparing their size (estimated by sight) to how heavy they feel in your hand.

What is the density of a mineral answers?

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).

#### What mineral has a density of 4?

Densities of minerals

Mineral Density (ranging from to)
(g/cm3) (kg/m3)
Acmite 3.52 3520
Actinolite 3.04 3040
Alabandite 4 4000

What are the most dense minerals?

Most of the major rock-forming minerals in the Earth’s crust, like quartz, feldspar, and calcite, have very similar densities (around 2.6 to 3.0 g/cm3). Some of the heaviest metallic minerals, like iridium and platinum, can have densities as high as 20….Mineral Densities.

Mineral Density
Talc 2.7–2.8
Tourmaline 3.02–3.2

## What are the 5 facts about density?

An object with a density less than 1 gm/cm3 will float in water. High density materials such as metal, concrete, or glass, will sink in water because they are higher density than water. An object with a density greater than 1 gm/cm3 will sink in water. The density of water can be changed by the addition of minerals.

What is the most dense mineral?

In most cases, denser objects are also heavier. The densities of rocks and minerals are normally expressed as specific gravity, which is the density of the rock relative to the density of water….Mineral Densities.

Mineral Density
Calcite 2.71
Chlorite 2.6–3.3
Copper 8.9
Feldspar 2.55–2.76

### What is specific gravity of minerals?

A mineral’s specific gravity is the ratio of its mass to the mass of an equal volume of water. For example, magnetite has a specific gravity value of 5.2, meaning 1cm3 of magnetite will be 5.2 times as heavy as 1cm3 of water.

What mineral is very dense?

In most cases, denser objects are also heavier. The densities of rocks and minerals are normally expressed as specific gravity, which is the density of the rock relative to the density of water….Mineral Densities.

Mineral Density
Feldspar 2.55–2.76
Fluorite 3.18
Garnet 3.5–4.3
Gold 19.32

#### How are the densities of rocks and minerals expressed?

The densities of rocks and minerals are normally expressed as specific gravity, which is the density of the rock relative to the density of water. This isn’t as complex as you may think because water’s density is 1 gram per cubic centimeter or 1 g/cm3. Therefore, these numbers translate directly to g/cm3, or tonnes per cubic meter (t/m3).

What is the specific gravity of a mineral?

Most rock-forming minerals have a specific gravity between two and three; for example, quartz has a specific gravity of 2.65. Metallic minerals are far more dense; for example, galena, as we’ve talked about in our discussion, has a specific gravity of 7.5, and platinum has a specific gravity around 22.

## What do you need to know about density?

Lesson Summary. Density measures the mass of an object or substance compared to its volume. The equation we use to find density is: density = mass / volume. If an object is heavy and compact, it has a high density. If an object is light and takes up a lot of space, it has a low density.

What are the densities of the heaviest minerals?

Some of the heaviest metallic minerals, like iridium and platinum, can have densities as high as 20. 