Igneous
Most common instrusive igneous rock
Granite
Greenish surface, made from clays and micas (HINT: looks like Emerald)
Phyllite
Which rock almost never contains fossils and is very irregularly layered?
Travertine
Looks like gold, sometimes called Fool's Gold (HINT: more valuable than gold because it's used in microchips)
Pyrite
Above ground = A
Below ground = B
A) lava
B) magma
Looks like Obsidian but is not (HINT: looks like roads)
Basalt
Which rock has medium grains, is flakey, and whose parent rock is Phyllite?
Schist
Which rock is has a powdery texture and is made from shells of plankton? (HINT: some people use this on blackboard)
Chalk
Which mineral is dark red with white streaks and has a hardness of 6-7.5?
Garnet
What is crystal that comes in a sphere?
Geode
A very light and porous rock (HINT: sometimes looks like foam)
Pumice
This rock can be any color, it's parent rock is Shale.
Slate
What rock is formed in warm, shallow marine environments?
Limestone
Green, earthy or silky, with a hardness o 3.5
Malachite
What rock is edible? (HINT: made entirely from sodium chloride)
Halite (Rock Salt)
Salt and pepper rock (HINT: looks like soldier pants)
Diorite
Which rock is made from clacite and dolomite? (HINT: most often cream colored)
Marble
Which type of coal has alternating shiny and dull layers and comes from marshes or swamps?
Bituminous Coal
Which mineral is yellow and earthy? (HINT: when mixed with water it releases a small amount of hydrogen sulfide gas which can smell unpleasant)
Sulfur
Who are the two "twins" who always hold hands?
Weathering & Erosion
Which rock is formed from glassy lava?
Obsidian
Which rock has distinct layers as a result of high temperature and pressure? (HINT: this rock is really nice)
Gneiss
In which rock can you find evidence of plants and swamp creatures?
Shale
Glassy brown or black (HINT: not soldier pants)
Biotite
What type of rock burns hotter than typical coal?
Anthracite Coal