lab test 1 Flashcards
What mineral is this rock composed o + what are its features?
- pyrite
- hardness = 5.5-7
- fracture: uneven
What mineral is this rock composed o + what are its features?
- chalcopyrite
- hardness = 3-5.5
- fracture = uneven
What mineral is this rock composed o + what are its features?
- galena
- hardness = 2.5 - 3
- cleavage = cubic 90 degree
What mineral is this rock composed o + what are its features?
- sphalerite
- hardness = 3-5.5
- cleavage = dodecahedral
What mineral is this rock composed o + what are its features?
- magnetite
- hardness = 3-5.5
- fracture = uneven
What mineral is this rock composed o + what are its features?
- talc
- hardness = 1
- cleavage = basal
What mineral is this rock composed of + what are its features?
- gypsum
- hardness = 2
- cleavage = basal
What mineral is this rock composed of + what are its features?
- calcite
- hardness = 3
- cleavage = rhombohedral
What mineral is this rock composed o + what are its features?
- halite
- hardness = 1-2.5
- cleavage = cubic 90 degree
What mineral is this rock composed o + what are its features?
- graphite
- hardness = 1-2.5
- cleavage = basal
What mineral is this rock composed o + what are its features?
- muscovite
- hardness = 1-2.5
- cleavage = basal
What mineral is this rock composed o + what are its features?
- biotite
- hardness = 1-2
- cleavage = basal
What mineral is this rock composed o + what are its features?
- amphibole
- hardness = 5.5-7
- cleavage = prismatic - 2 planes not 90 degree
What mineral is this rock composed o + what are its features?
- orthoclase
- hardness = 1-2.5
- cleavage = prismatic @ 90 degree
What mineral is this rock composed o + what are its features?
- plagioclase feldspar
- hardness = 5.5-7
- cleavage = prismatic @90 degree, 2 directions
What mineral is this rock composed o + what are its features?
- quartz
- hardness = 7
- fracture = conchoidal
What mineral is this rock composed o + what are its features?
- olivine
- hardness = 5.5-7
- fracture = conchoidal
What mineral is this rock composed o + what are its features?
- pyroxene
- hardness = 1-2.5
- cleavage = prismatic @ 90 degrees
What mineral is this rock composed o + what are its features?
- granite
- phaneritic
- felsic
What is the name of this igneous rock + features?
- diorite
- aphanetic
- intermediate
What is the name of this igneous rock + features?
- gabbro
- phaneritic
- mafic
What is the name of this igneous rock + features?
- peridoitite
- phaneritic
- olivine
What is the name of this igneous rock + features?
- rhyolite
- aphanitic
- felsic
What is the name of this igneous rock + features?
- basalt
- aphanitic
- mafic
