Rocks and Crystals
These are the two main families of rock-forming minerals.
silicates and nonsilicates
This is the softest mineral.
talc
Of these, this is the gemstone; explain why the others aren't: coral, gypsum, quartz, ruby
ruby. Coral is organic. Gypsum is common and not hard enough, quartz is too common
These two physical properties result from the way light interacts with a mineral.
Color and luster
A penny has a hardness of 3, glass has a hardness of 5.5; which can scratch the other?
Glass will scratch a penny
Carbonates, native elements, and oxides are part of this rock family.
nonsilicate
This has a hardness of 10.
Diamond
These are valuable mineral deposits that can be mined for a profit
Ores
Minerals cannot be this.
Organic.
This is a common use of copper
plumbing
An igneous rock with large crystals most likely underwent this type of cooling.
Slow
Glass has this hardness.
5.5
Look for this feature to see if a mineral exhibits cleavage
smooth, flat surfaces
Cleavage
Identify a crystal that is not a mineral
sugar
This produces tiny, hard to see crystals.
Lava
This process forms ALL of Earth's minerals.
Crystalization
Look for this feature to see if a mineral exhibits fracture.
hot solution
This is how to calculate the density of a mineral and this is the standard unit used
divide its mass by its volume
This crystalizes slowly because it cools underground.
Magma
This is where calcite falls on the Mohs scale.
3
This tool is used to determine a mineral's streak.
An unglazed porcelain tile
This mineral reacts with hydrochloric acid
Calcite
Minerals that break along planes of weakness exhibit this.
Cleavage