This type of sedimentary texture is sandy like sandstone, you can see sandy grains
medium grained
What causes metamorphic rocks to form?
Heat and pressure
Magma or lava
I am very sandy and often orangish brown
sandstone
This describes the way a rock feels on the surface
texture
What causes a sedimentary rock to form?
Compaction and cementation
If a metamorphic has bands such as Gneiss, what category is it?
Foliated
What event causes magma or lava to form an igneous rock?
cooling
I look like a bunch of shells got stuck in my skin
coquina
This is something that is made up of two or more minerals
rock
If a sedimentary rock breaks and gets compacted together, what type of rock forms?
Sedimentary
Name one metamorphic rock
Gneiss, slate, marble
What does a rock have to do before Cooling to turn into another igneous rock?
Melt
I have a shiny black surface, I came from a volcano
obsidian
erosion
This is what causes rocks to break into sediment, from ice, water, or wind
weathering
Metamorphic rock melts then cools, what type of rock is formed?
igneous
The two classes of igneous rocks are
Intrusive and extrusive
I am often used in countertops, I come from under a volcano with large crystals
granite
this is broken pieces of rock
sediment
Sedimentary rocks that form from evaporation such as halite are which category of sedimentary?
Chemical
What causes foliation?
The way the minerals are aligned
Which type of igneous rock has larger crystals? Why?
Intrusive, it cools slower
I am a dalmation looking igneous rock with black and white crystals... who am I?
diorite
this is the process in which sediment comes to rest in a pile
deposition