fucking rocks Flashcards
Covellite
CuS
Chalcopyrite
CuFeS2
Pyrrhotite
(Fe(1-X)S)
Pyrite
FeS2
Marcasite
FeS2
Arsenopyrite
FeAsS
Chalcosite
Cu2S
Hematite
Fe2O3
Corundum
Al2O3
Bauxite
complex of aluminous hydroxides
Ilmenite
FeTiO3
Magnetite
Fe3O4
Rutile
TiO2
Chromite
FeCr2O4
Goethite
FeO(OH))
Pentlandite
(Fe, Ni)9S8
What looks like a peacock
covellite
What has a greenish brown streak and looks like cheap gold spraypaint
Chalcopyrite
What is the hardness of covellite
1.5 - 2
what is the streak of chalcopyrite
greenish
what is the colour of pyrrhotite
bronzish
What is the hardness if pyrrhotite
low hardness
What is the streak of pyrite
greenish black
What is described as fools gold
pyrite
What is the habit of pyrite
cubic
What is the crystal that looks like a metallic fishscale
marcasite
What crystal looks like pyrite but darker
arsenopyrite
What is the specific gravity of arsenopyrite
high specific gravity
What is the hardness of chalcosite
very soft
What is the tarnish that may be in chalcosite
purplish
What is the rock that has a greenish streak, is massive and may be a bit purple
Chalcosite
What rock looks “lavaish”
Hematite
What is the streak of hematite
red
What colour is hematite
black to red with maybe a but of steel grey
what is special about hematite
magnetic dusk
What is the hardness of corundum
9
What is the shape that corundum takes and why
hexagons because it had a trigonal crystal system
What crystal is gonna be hexagon
corundum
What does bauxite look like
reddish orange rock with spots
What is the hardness of 1-3
bauzite
What streak is ilmenite
black
What is special about ilmenite
It is weakly magnetic meaning that a magnet will skip when dragged across it
What is magnetites streak
black
What is magnetites habit
either cubis or massive
What is rutiles lustre
submetallic to adamentine
What are the ways rutile might show up
Weird tabular looking things kinda purply red, might be clear rock with gold wires in it, might be a dark red rock with orangey lines (most likely???????)
What is the streak of chromite
dark brown
What is the lustre of chromite
metallic to submetallic
What would you describe chromite as
darker rock with a bit of lustre
What is the colour appearance or goethite
dark rock (black) with some orange shit on it
What is the streak of goethite
ORANGE mf
What is the streak of pentlandite
light bronze or brown
What is the general appearance of pentlandite
darker grey rock with some goldish or silver shimmer shit on it
Is pentlandite magnetic
nope