identifying minerals thin section
Studied by 3 people
Learn
Practice Test
Spaced Repetition
Match
Flashcards1/46
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
47 Terms
what mineral is this
olivine
what mineral is this
olivine
what clear is olivine under PPL
clear to pale yellow
does olivine exhibit pleochroism? if so what colors
pale yellow to orange
what order is olivine (birefringence)
high 2nd order 4th order
what mineral is this
hornblende
what mineral is this
hornblende
what color is hornblende under PPL
usually brown or green
does hornblende exhibit pleochroism and if so what color is it
pale yellow to dark green or brown
what mineral is this
biotite
what mineral is this
biotite
what color is biotite under PPL
brown, reddish, or green
does biotite exhibit pleochroism and if so what color is it
light dark brown or green
does biotite exhibit extinction and if so what type
bird’s eye extinction
what mineral is this
muscovite
what mineral is this
muscovite
what interference color is muscovite
3rd order
what color is muscovite under PPL
clear to very pale
does muscovite exhibit pleochroism and if so what colors
no pleochroism
does muscovite exhibit extinction and if so what type
bird’s eye extinction
what mineral is this
plagioclase
what mineral is this
plagioclase
what color is plagioclase under PPL
clear
does plagioclase exhibit pleochroism and if so what color
no pleochroism
what mineral is this
K feldspar
what mineral is this
k feldspar
what mineral is this
k feldspar
what color is k feldspar under PPL
clear
does k feldspar exhibit pleochroism and if so what color
no pleochroism
what mineral is this
quartz
what mineral is this
quartz
what color is is quartz under PPL
clear
does quartz exhibit pleochroism and if so what color
no pleochroism
does quartz exhibit extinction and if so what type
undulatory extinction
which minerals exhibit pleochroism
olivine, orthopyroxene, clinopyroxene, hornblende, biotite
what mineral is this
garnet
does garnet exhibit pleochroism and if so what color
no pleochroism
what color is garnet under PPL
red, black, brown, white, yellow, green
what mineral is this
kyanite
what mineral is this
kyanite
what color is kyanite under PPL
colorless to pale/patchy blue
does kyanite exhibit pleochroism and if so what color
colorless to blue
what mineral is this
staurolite
what mineral is this
staurolite
what color is staurolite under PPL
yellowish brown
does staurolite exhibit pleochroism and if so what color
colorless yellow
what minerals don’t exhibit pleochroism
muscovite, garnet, andalusite, sillimanite, plagioclase, k feldspar, quartz