Ch 13; L1 Mineral Properties and Definitions

Define what a 'mineral' is

• Synthetic compounds created in laboratories.
• Carbon-carbon materials derived from living organisms.

• Elements that are always found in a gaseous state.
• Naturally occurring inorganic substances with a definite chemical composition.

Are synthetic (human made in a lab) gems considered minerals?

• Synthetic gems are a type of organic mineral.
• Yes, synthetic gems are considered minerals.
• Synthetic gems are natural minerals.
• No, synthetic gems are not considered minerals.

Which chemical compounds must minerals NOT contain to be considered a mineral?

• Silicates
• Organic compounds (e.g., carbon-based compounds) must NOT be present.
• Oxides
• Inorganic compounds

Which is true about the crystalline structure of minerals?

• Minerals are composed of random atomic arrangements.
• Minerals have a repeating atomic arrangement in a specific geometric pattern.
• All minerals have a liquid structure at room temperature.
• Minerals do not have any geometric patterns in their structure.

What is a common way of identifying minerals?

• By using chemical formulas only.
• By examining physical properties and conducting tests.
• By relying on color alone.
• By asking a geologist for their opinion.

List 4 ways minerals are formed

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Describe why magma forms large crystals

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What size crystals does lava form?

• Large crystals
• Only gas formations
• Small to medium-sized crystals
• No crystals

Why does lava form smaller crystals than magma?

• Lava forms smaller crystals than magma due to its faster cooling rate.
• Lava cools more slowly than magma.
• Magma contains more gas than lava.
• Lava is formed from solid rock fragments.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following are physical properties that can be used to identify mineral types?

• Flexibility

• Transparency
• Solubility
• Hardness, color, luster, streak, cleavage, conductivity