Minerals
Rubbing a mineral across a white, unglazed tile produces this.
STREAK OR LUSTER
What is streak?
This plutonic rock is course grained and felsic.
OBSIDIAN OR GRANITE
What is granite?
This bioclastic sedimentary rock is made from plant remains.
shale rock or bitminous coal
What is Bituminous Coal?
This metamorphic rock shows bands of different minerals.
OBSIDIAN OR GNEISS
What is Gneiss?
Most rocks are made of these.
MINERALS OR SALTS
What are minerals?
When a mineral breaks along a flat, SMOOTH surface it shows this property.
CLEAVAGE OR FRACTURE
What is cleavage?
This rock cooled so fast it turned to glass.
QUARTZ OR OBSIDIAN
What is obsidian or basaltic glass?
This sedimentary rock will fizz in mild hydrochloric acid.
quartz or limestone
What is limestone or dolostone?
When shale is exposed to heat and pressure without melting this rock is formed.
SLATE OR LIMESTONE
What is Slate?
This is how rocks are classified.
HOW THEY FORM OR WHERE THEY ARE LOCATED
What is how they form?
This scale is based upon the relative hardness of common minerals and objects.
MOH'S OR MOORE'S
What is Moh's hardness scale.
This rock has the same mineral composition as granite but contains holes or gas pockets.
limestone or pumice
What is pumice?
This clastic sedimentary rock is made from the finest sediment.
granite or shale
What is shale?
Exposing sandstone to extreme heat and pressure without melting will make this rock.
TALC OR QUARTZITE
What is Quartzite?
These rocks form through solidification of magma/lava.
METAMORPHIC OR IGNEOUS
What are igneous rocks?
Mineral properties are determined by the arrangement of these, THE SMALLEST UNIT OF MATTER.
ATOMS OR MOLECULES
What are atoms?
This volcanic rock contains pyroxene and has fine grained texture.
basalt or obsidian
What is basalt?
This sedimentary rock looks like cement.
talc or conglomerate
What is conglomerate?
This rock is only made through contact metamorphism.
MARBLE OR HORNFELS
What is Hornfels?
This is how sediments form.
WEATHERING AND EROSION OR HEAT AND PRESSURE
What is weathering and erosion?
A mineral must have a crystal structure, solid, definite chemical composition, naturally occur and this.
BE ORGANIC (ONCE LIVING) OR INORGANIC (NON-LIVING)
What is inorganic.
This rock cooled deep within the earth and contains feldspar and pyroxene.
cement or grabbo
What is gabbro?
This rock can form either through evaporation of seawater or cementation of bioclastic parts.
COAL OR LIMESTONE
What is Limestone?
This mineral is sometimes found in Schist.
GLASS OR PYROXENE
What is Pyroxene?
What type of rock covers most of the continents?
SEDIMENTARY OR METAMORPHIC
What are sedimentary rocks?