IGNEOUS
This fine-grained, extrusive igneous rock often forms when lava cools rapidly at the Earth's surface.
Basalt
is a mineral's resistance to scratching, and it is measured using the Mohs hardness scale
Hardness
are the preserved remains or traces of ancient organisms.
Fossils
is a visible property that can help identify minerals, but it can be misleading because some minerals come in various colors due to impurities.
Color
formed from existing rocks that have been changed by heat and pressure.
Metamorphic
These light-colored igneous rocks are rich in silica and include examples like granite and rhyolite.
Felsic rocks
refers to the way light reflects off a mineral's surface.
Luster
are formed from the accumulation and compaction of sediments, which can be fragments of other rocks, minerals, or organic material.
Sedimentary rocks
refers to when a mineral breaks irregularly, without cleavage planes.
Fracture
What is the process called that transforms rocks into metamorphic rocks?
Metamorphism
This igneous rock, known for its glassy texture, forms when lava cools so rapidly that crystals do not have time to form.
Obsidian
is the color of the powdered form of a mineral and is determined by rubbing the mineral on a streak plate
Streak
Which sedimentary rock is commonly used in construction and is made mostly of sand particles?
describes a mineral habit where the crystal is roughly equal in all dimensions, resulting in a blocky or cubic shape.
Equant
Which metamorphic rock is often used for making statues?
Marble
Igneous rocks rich in iron and magnesium, giving them a darker color, are categorized as this.
Mafic rocks
is the tendency of a mineral to break along flat planes of weakness in its crystal structure.
Cleavage
What fossil-containing sedimentary rock is formed from shells and marine organisms
Limestone
refers to a habit where a mineral forms thin, flat sheets, similar to the shape of a plate or flake.
Platy
Is slate a type of metamorphic rock?
Yes
Rocks that form from the cooling and solidification of magma (beneath the Earth's surface) or lava (at the Earth's surface).
Igneous
refers to the characteristic shape of individual mineral crystals or crystal aggregates.
Habit
What is the most common type of sedimentary rock found on Earth?
Shale
habit describes crystals that are significantly longer in one direction than in the others, resembling needle-like or rod-like shapes.
Elongate
What rock does marble come from?
Limestone