Flashcards

Question 1

The shape of a crystal comes from their?

Answer 1

Structure

Question 2

What is a Crystal?

Answer 2

A crystal is a solid whose atoms or other components appear in a regular, repeating pattern.

Question 3

What is the Matter around composed of?

Answer 3

The matter around you is made of atoms of various elements. An element is a substance that cannot be broken into simpler substances by chemical means.

Question 4

What are the most common elements in the Earth’s’ CRUST?

Answer 4

The most common elements in the Earth’s Crust are Oxygen and silicone

Question 5

What is a Mineral

Answer 5

A mineral is a solid substance that has a characteristic chemical composition

Question 6

Occurs naturally

Answer 6

All minerals can be found in nature. Although diamonds can be made in a lab, they are still minerals because they also occur naturally.

Question 7

Inorganic

Answer 7

If a compound forms only through biological processes, then it is not a mineral. Calcite often forms through biological processes, such as the formation of shells.

Question 8

Solid

Answer 8

Although ice is a mineral, liquid water is not.

Question 9

Has a specific chemical composition

Answer 9

Minerals are elements or compounds. You can write a chemical formula to describe their composition. Most rocks, on the other hand, are mixtures of minerals. You can’t write a single chemical formula for a rock.

Question 10

Has a definite crystalline structure

Answer 10

The atoms in a mineral are arranged in a specific and repeating pattern. Opal has a similar composition to quartz, but its atoms are not arranged in a specific, repeating pattern, so it is not considered to be a true mineral.

Question 11

How do you tell the size of the crystals

Answer 11

The Size of crystals is determined by how fast the magma cools or hardens.

Question 11

How do you tell the size of the crystals

Answer 11

The Size of crystals is determined by how fast the magma cools or hardens.

Question 12

Luster

Answer 12

The appearance of a mineral surface in terms of its light-reflective qualities.

Question 13

Transparency

Answer 13

When light encounters transparent materials, almost all of it passes directly through them. Materials like air, water, and clear glass are called transparent.

Question 14

Shape

Answer 14

The form of an object or its outline, outer boundary or outer surface.

Question 15

Color

Answer 15

The quality of an object or substance with respect to light reflected by the object, usually determined visually by measurement of hue, saturation, and brightness of the reflected light; saturation or chroma; hue.

Question 16

Streak

Answer 16

The colour of a mineral in its powdered form

Question 17

cleavage

Answer 17

Tendency of a crystalline substance to split into fragments bounded by plane surfaces.

Question 18

fracture

Answer 18

A fracture is a break, usually in a bone.

Question 19

Hardness

Answer 19

The resistance of a material to localised plastic deformation

Question 20

Saturation

Answer 20

Full to capacity

Question 21

Crystallize

Answer 21

It Hardens

Question 22

Of the 92 naturally occurring elements on earth how many still exist?

Answer 22

Only 19 exist as native element minerals.

Question 23

What is a compound

Answer 23

A thing that is composed of two or more separate elements; a mixture.

Question 24

What are The most abundant minerals in the crust?

Answer 24

compounds rich in the elements oxygen and silicon called silicates.

Question 25

What are some common Materials

Answer 25

quartz (SiO2), Halite (NaCl), Calcite (CaCO3), and Pyrite (FeS2) are compounds.