Min/Pet Exam 1 Flashcards
What is the most common mineral group?
feldspars
What is the chemical composition of quartz?
SiO2
Minerology
concerned with identification, classification, and formation of minerals
Petrology
concerned with identification, composition, formation, processes, and global distribution of rocks
Where was the second largest diamond found?
Botswana
Raw diamond is often found in…
kimberlite
The Hope Diamond is 1/2 part per million of…
boron
Between Jadeite and Nephrite, which mineral is harder?
Jadeite
What mineral makes up rubies and sapphires?
corundum
Industrial minerals
useful minerals and rocks that are not used as a source of metals or energy
Beneficiation
process in which rocks are separated and valuable minerals are concentrated
2/3 of the world’s cobalt comes from which country?
Democratic Republic of the Congo (DRC)
What are independent miners often referred to as?
artisanal miners
What is the biggest issue people and corporations have with the mining in DRC?
child labor
Which country manufactures the most batteries?
China
Rocks are made of _______ and minerals are made of _______.
minerals, elements
92% of Earth’s Crust is composed of _______ minerals.
silicate
Xenoliths
chunk of mantle brought up by magma on its way to the surface
Most important elements in forming rocks:
O, Na, Mg, Al, Si, Ca, K, Fe
Siderophile
iron-loving elements
Lithophile
rock-loving (often bond with silicates)
Why is there a lot of iron still in the crust?
meteors and leftovers from differentiation
1/5 of the world’s high grade nickel is controlled by who?
Russia
By how much will the electric grid have to expand to sustain the goal amount of EV’s?
2x
Battery and mineral supply will need to expand by how much to meet new demand?
10x
Which rare earth element is used to create vibrations?
neodymium
Mineral
naturally occurring inorganic solid with a definite chemical composition (can vary slightly) and a crystalline structure
Is water ice a mineral?
yes
Mineraloid
amorphous or organic, but satisfy every other characteristic of being a mineral (i.e. opal, jet, amber, pearl)
Silicate
have the silicon-oxygen tetrahedron as their structural unit
Oxide
contain oxygen but not SiO
Carbonate
contain CO
Phosphate
contain PO
Sulfide
contains S but not SO
What two categories are rare earth metals divided into?
light and heavy
China is dominant in processing REE’s, but who was before the 1980’s?
U.S.
3 most important metals in magnets:
neodymium, dysprosium, terbium
What has China done to clean up pollution?
shut down illegal mines, replanted vegetation, cleaned lakes used for beneficiation, installed wastewater treatment facilities, reduced erosion, etc.
Where do you find REE’s on the periodic table?
Lanthanide Series
REE’s are important for what features in your phone?
color screen, glass polishing, circuitry, speakers, vibration unit
Halides
contain Cl, F, I, or Br
Native elements
contain Au, Ag, Cu
Assay
the chemical analysis or testing of an alloy ore
Ore Grade
concentration of economic mineral or metal in an ore deposit
What can lithium be used for besides batteries?
shock-resistant glass and mood stabilizers
Beneath the salt flats of Chile, Argentina, and Bolivia is ____.
lithium-rich groundwater
____ was the primary source of lithium before the 1990’s
pegmatite
McDermitt Caldera collects ____layers of ash with lithium
clay
A typical electric car has ____ pounds of lithium carbonate
44
Lithium is often mined by pumping ____ from underground
brine
Celestite is a…
sulfate
CO3 ^2-
carbonate
SiO4 ^4-
silicate
SO4 ^2-
sulfate
PO4 ^3-
phosphate
OH ^-
hydroxide
Van der Waals bonds
bonds between molecules, makes minerals like graphite and talc very soft
Metallic bonds
permit electron flow, makes metals malleable, good conductors
Hydrogen bonds
very weak bonds ,found in water and generally polar molecules
Tectosilicates
1:2 ratio; quartz, feldspar
____ was in competition with silicon to be in electronics
germanium
Ultra pure quartz is created in ____ made with ultrapure quartz to maintain purity
crucibles
Santa Clara Valley is also known as
Silicon Valley
Nesosilicates
Si:O ratio 1:4, olivine, garnet, zircon
Sorosilicates
Si:O ratio 2:7; epidote
Inosilicates
single chain– 1:3 ratio; pyroxenes
double chain– 4:11 ratio; amphiboles (hornblende), cummintonite
Cyclosilicates
1:3 ratio; beryl, tourmaline
Phyllosilicates
2:5 ratio; talc, micas
What is the name of the mineral ore of tin?
cassiterite
Tin is used primarily for…
soldering
What industry is impacted the most by Bangka’s rezoning of mining?
fishing
How is cassiterite mined?
dredging sand from the ocean
Mineralization
how minerals form
Low temp. and pressure precipitation from fluids
shallow crust, surface water bodies, sedimentary cementation, diagenesis
High temp. and pressure precipitation from fluids
deep fractures, volcanic systems
Meteoric water
groundwater formed from recent atmospheric precipitation
Connate water
water trapped in the pores of a rock during formation of the rock
Magmatic water
water associated with magma
Metamorphic water
water given off, or squeezed out of metamorphosing rock
Water is a…
polar solvent
Polymetallic nodules have which elements?
manganese, nickel, cobalt, and copper
Hydrogenous processes
metal compounds sinking through water are precipitated
Diagenetic processes
growth occurs within sediments, metal compounds are already present
Hot debate between Baron and activists:
whether there is life in the CCZ (Clarion Clipperton Zone)
Porphyry ore deposits
magmatic water from below
Gossan
pyrite near the surface oxidizes in to insoluble Fe like limonite and geothite
Leach Zone
leaches sulfur, water becomes sulfuric acid, dragging Cu, Ag, and Au down towards oxide zone
Oxide Zone
oxides, sulfates, and carbonates form (malachite, azurite, cuprite, smithsonite, pyromorphite)
Water Table
anoxic environment, dominated by magmatic water, forms sulfides
Hypogene
primarily magmatic, not as good at concentrating, lower grade ores to the bottom