Exploring the Physical Properties of Minerals

The lecture covers the physical properties of minerals, including crystal form, luster, color, streak, hardness, cleavage, fracture, and specific gravity. It explains how these properties help identify minerals and discusses additional characteristics like taste, texture, and magnetism.

What is the internal arrangement of atoms in a mineral called?

• Crystal form

• Streak

• Luster

• Cleavage

Tags

NGSS.MS-PS1-1

Which type of luster is characterized by a dull appearance?

• Vitreous luster

• Earthy luster

• Pearly luster

• Metallic luster

Why is color considered the least reliable property for identifying minerals?

• It is not visible in all minerals

• It changes with light

• It is affected by impurities

• It is too subjective

What is the term for the powder left behind when a mineral is rubbed on an unglazed porcelain tile?

• Luster

• Cleavage

• Fracture

• Streak

Which mineral is the hardest according to the Mohs scale?

• Talc

• Feldspar

• Quartz

• Diamond

What is the hardness of a copper penny on the Mohs scale?

• 6

• 2.5

• 3

• 5

What is the term for the tendency of a mineral to break along flat surfaces?

• Luster

• Streak

• Cleavage

• Fracture

What is the term for minerals that break with no specific pattern?

• Fracture

• Luster

• Streak

• Cleavage

What property of minerals is similar to density and is a unitless quantity?

• Luster

• Specific gravity

• Hardness

• Cleavage

Which mineral property involves a reaction with hydrochloric acid?

• Magnetism

• Texture

• Taste

• Chemical reaction

Tags

NGSS.MS-PS1-2