Looking Questions About Mineral Composition and Igneous Rocks

What do we call the way a mineral reflects light? Either metallic or nonmetallic:

• Cleavage

• Streak

• Luster

• Reflection

Which mineral property is being shown here?

• luster
• hardness
• cleavage
• streak

What are the two most abundant elements in the crust by mass? use page 1 of the ESRT

• iron and aluminium

• oxygen and silicon

• potassium and magnesium

• calcium and iron

The tendency for a mineral to split along specific planes of weakness to form, smooth flat surfaces.

• Cleavage
• Fracture
• Crystallization
• Fracture

The outward crystal shape of a mineral is a result of 

• the internal arrangement of atoms
• the type of atoms 
• the hardness 
• the color 

Tags

NGSS.MS-PS1-1

Which mineral contains iron , aluminum silicon and oxygen? (use page 16 in ESRT)

• Magnetite

• Halite

• Garnet

• Olivine

Tags

NGSS.MS-PS1-1

Which is the only mineral below that will scratch olivine?

• Plagioclase feldspar
• Muscovite mica
• Quartz
• calcite

Tags

NGSS.MS-PS1-2

The solidification of the melted rock occurred

• slowly, resulting in fine-grained minerals

• rapidly, resulting in fine-grained minerals

• slowly, resulting in coarse-grained minerals

• rapidly, resulting in coarse-grained minerals

Obsidian's glassy texture indicates that it formed

• slowly, deep below Earth's surface

• slowly, on the Earth's surface

• quickly, deep below Earth's surface

• quickly, on the Earth's surface

Which igneous rock has a vesicular texture and contains the minerals potassium feldspar and quartz?

• andesite

• pumice

• Pegmatite

• scoria