October 24, 2011 Sanders 12:41 AM
Unit 2: Rocks and MineralsUnit 2: Rocks and Minerals
2-2 What Are Mineral Properties?
April 22, 2023 Unit 2: Rocks and Minerals 12:41 AM
Identify MineralsIdentify Minerals
Physical properties can be used to identify minerals.
Physical properties can be used to identify minerals.
April 22, 2023 Unit 2: Rocks and Minerals 12:41 AM
ColorsColors
Color alone cannot be used to identify a mineral.
Quartz comes in many colors.
Color alone cannot be used to identify a mineral.
Quartz comes in many colors.
April 22, 2023 Unit 2: Rocks and Minerals 12:41 AM
ColorsColors
Some minerals have the same color.
This is why you can’t use color as an identifying property. gold pyrite
Some minerals have the same color.
This is why you can’t use color as an identifying property. gold pyrite
April 22, 2023 Unit 2: Rocks and Minerals 12:41 AM
StreakStreak
The color of the powder left by a mineral is called streak.
The mineral above left a reddish-brown streak, what is it?
The color of the powder left by a mineral is called streak.
The mineral above left a reddish-brown streak, what is it?
April 22, 2023 Unit 2: Rocks and Minerals 12:41 AM
DensityDensity
Density or specific gravity can be used to identify minerals.
Prospectors pan for gold because gold has a greater specific gravity than other minerals.
Density or specific gravity can be used to identify minerals.
Prospectors pan for gold because gold has a greater specific gravity than other minerals.
April 22, 2023 Unit 2: Rocks and Minerals 12:41 AM
Mineral StructuresMineral Structures
Minerals can be identified by their structure; whether the crystal cleaves fractures.
Minerals can be identified by their structure; whether the crystal cleaves fractures.
April 22, 2023 Unit 2: Rocks and Minerals 12:41 AM
HardnessHardness
The property of a mineral to resist being scratched is its hardness.
A harder mineral can scratch a softer mineral.
The property of a mineral to resist being scratched is its hardness.
A harder mineral can scratch a softer mineral.
April 22, 2023 Unit 2: Rocks and Minerals 12:41 AM
LusterLuster
The way a mineral reflects light from its surface is called luster. Metallic Non-metallic
The way a mineral reflects light from its surface is called luster. Metallic Non-metallic
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