Minerals
What is a substance that is found naturally in the earth that has a crystalline structure?
Mineral
What type of rock consists of smooth pebbles embedded in hardened sand or clay?
Conglomerate Rock
What is an alloy of iron and carbon?
Steel
What chemical sedimentary rock that consists of at least 50% of calcium carbonate?
Limestone
Fluorescent
What is a geometric structure composed of atoms or molecules in an orderly arrangement?
Crystal
What type of rock forms when magma cools slowly an then rapidly making a mixed texture?
Porphyritic Rock
What is a metal value for its durability, rarity, and beauty?
Precious metals
What is the most abundant sedimentary rock?
Shale
Phosphorescent
glowing for a while after being exposed to ultraviolet light and then placed in the dark
What is it called when light is reflected from the surface of a mineral?
luster
What is the change of one rock into a new type of rock?
Metamorphism
What is it called when gold is put into bars?
Bullion
What are the two main alloys of copper?
Brass & bronze
Concretion
hard, round structure that forms when minerals settle out of water and crystallize around a sand grain or other mineral fragments.
What is the flat surface of a crystal?
Face
What is a horizontal rock layer that has a different type of rock layer above it?
Stratum
What method refines iron?
Blast furnace
What is the number that compares an object’s density to the density of water?
Specific gravity
Intrusive Rock
igneous rock that forms when magma cools and hardens while still underground.
What is the tendency called when a mineral breaks along a flat surface creating fragments with the same shape.
What is the upper layers of the ground that is stripped away in surface mining to mine for coal?
Overburden
What is a mixture of two metals?
Alloy
What are the largest groups of minerals?
Silicates
Diamond Pipe
What is a narrow vertical underground deposit of diamonds that resembles the vent of an extinct volcano?