Geology Flashcards
95.5 carat diamond in Smithsonian
Hope Diamond
“Mutton fat” nephrite
Jade
Kashmir Blue type of gem
Sapphire
Diamond material
Carbon
Deep black lignite
Jet
Large East Africa fault line
Great Rift Valley
Purple corundum
Sapphire
June birthstone
Pearl
Green Chalcedony spotted with red jasper
Bloodstone
Study of Earth’s physical properties
Geophysics
Ruby rating on Mhos scale
Nine
Cave ceiling fixtures
Stalactites
Reddish-brown gem
Garnet
Yellow or golden gem
Topaz
Star of India type of gem
Ruby
Dense rock formed from cooling lava
Basalt
Uranium and radium ore
Pitchblend
Southern super continent - 120 million years ago
Gongwana
September birthstone
Sapphire
Black organic gem
Jet
Current geologic era
Cenozoic (recent life)
December birthstone
Turquoise
Diamond in Titanic
Heart of the Ocean
Earth’s outer layer
Crust
Ancient super continent - 240 million years ago
Pangaea
Northern super continent - 120 million years ago
Lauasia
July birthstone
Ruby
Translucent gypsum
Alabaster
Large California fault line
San Andreas Fault
Current geologic epoch
Holocene
Most common igneous rock
Granite
Early geologic era
Paleozoic (ancient life)
Earth’s layer below crust
Mantle
Earth’s crust most abundant rock
Igneous
March birthstone
Aquamarine
Middle geologic era
Mesozoic (middle life)
November birthstone
Topaz
Red corundum
Ruby
Hard coal
Anthracite
Gem named after a tsarina
Alexandrite
Tidal wave caused by an earthquake
Tsunami
Mercury ore
Cinnabar
Glass formed from cooling lava
Obsidian
May birthstone
Emerald
Copper ore
Cuprite
April birthstone
Diamond
Ocean surrounded by volcanic “ring of fire”
Pacific
Course grain rock
Gneiss
Stalactite and stalagmite combination
column
Three types of rock
Igneous - sedimentary - metamorphic
Purple quartz
Amethyst
Lead ore
Galena
Opaque blue or azure gemstone (sometimes flecked)
Lapis lazuli
Scale measuring mineral hardness
Mhos scale
February birthstone
Amethyst
Fool’s gold
Iron Pyrite
Scale measuring earthquake intensity
Richter scale
Aluminum ore
Bauxite
Large volcanic crater
Caldera
Hard carbon
Diamond
Brown coal
Lignite
October birthstone
Opal
Shale rock type
Sedimentary
World’s hardest mineral
Diamond
Study of rocks
Petrology
Green beryl gem
Emerald
Diamond rating on Mhos scale
Ten
Soft igneous rock
Pumice
Soft coal
Bituminous
Gem found in Tanzania
Tanzanite
Talc rating on Mhos scale
One
January birthstone
Garnet
Soft carbon
Graphite
Earth’s energy
Geothermal
Current geologic period
Quaternary
Earth’s age
4.5 billion years
Study of the motion of Earth’s plates
Tectonics
Cave floor fixtures
Stalagmites
August birthstone
Peridot