Mineral identifying properties Flashcards
Talc
soapy/ greasy texture
variety of colour
Hardness of 1
Earthy or pearly luster
iron nugget
Gypsum
tilted cleavage, never a perfect cube
angled
vitreous luster
clear colour
hardness of 2
Calcite
diagonal facing lines within the mineral
creamy/ foggy white/marble
3 cleavage
hardness of 3
vitereous luster
Orthoclase
pale green
hardness of 4
vitereous luster
emerald/amethyst
Apatite
greasy
variety of colours
hardness of 5
vitereous luster
green, could be blue, or within another rock
microcline
vitereous luster
hardness of 6
salmon
rough feeling
looks like it has viens
you MICROwave salmon
quartz
clear
hardness of 7
vitereous luster
crystal movie look- can be
hexagonal/ diamond look
topaz
soft/smooth feeling
dusty clear
hardness of 8
vitereous luster
nether quartz
corundum
brown/purple
Adamantin to vitereous luster
hardness of 9
redstone torch
Actinolite
variety of colour- green main mineral
hardness of 5-6
tiny crystals in the mineral
vitereous luster
obsidian
Albite
white streak
grey colour
hardness 6.5-7.5
vitereous luster
clay
garnet
vitereous luster
hardness of 6.5-7.5
goldy brown colour
main mineral is red anything else extra
made up of tiny pieces (pixely)
redstone
pyroxene
vitereous luster
hardness of 5-6
black/brown colour
looks like your average rock bro
stone
Biotite
vitreous luster
hardness of 2.5-3
fragile
thin
black in colour
flint& steel
Chlorite
vitereous luster
hardness of 2-2.5
shiney
grey in colour
powdered concrete
Dolomite
vitreous luster
hardness of 3.5-4
white marbley
grainy
gravel