DIAGNOSTIC PROPERTIES Flashcards
1
Q
Fluorite main identifier
A
purple fluorese
2
Q
fluorites streak
A
white
3
Q
fluorites hardness
A
4
4
Q
bornites nickname
A
“peacock ore”
5
Q
bornites streak
A
grey - black
6
Q
Halite taste
A
salt
7
Q
Halite hardness
A
2.5
8
Q
Sylvite taste
A
bitter
9
Q
Sylvite hardness
A
1.5 - 2
10
Q
scheelite fracture
A
conchoidal to uneven?
11
Q
scheelite streak
A
white to light yellow
12
Q
scheelite colour
A
bright orang,e yellow, brown, tan. (ocassionaly others) therefore not diagnostic
13
Q
apatite streak
A
white
14
Q
apatite colour
A
it is transparent with vibrant colour
15
Q
apatites lustre
A
vitreous to subresenous
16
Q
copper colour
A
copper with greenish blue tarnish
17
Q
copper lustre
A
metallic
18
Q
copper specific gravity
A
8.9
19
Q
sulfur streak
A
yellow
20
Q
sulfur colour
A
yellow (brownish to greenish yellow range)
21
Q
Sulfur hardness
A
1.5 - 2.5
22
Q
Sulfur specific gravity
A
2.0 ish
23
Q
sulfur scent
A
bad
24
Q
graphite cleavage
A
1 perfect cleavage plane
25
graphite lustre
metallic sometimes submetallic / earthy
26
graphite hardness
1 - 2
27
gold colour
golden yellow
28
gold hardness
2.5 to 3
29
gold specific gravity
19.3 when pure
30
galena cleavage
perfect at 3 right angles
31
galena colour
bright silver with metallic lustre
32
galena specific gravity
7.4 to 7.6
33
sphalerite main identifier
fire rock through hand lens due to 6 perfect cleavage planes
34
sphalerite lustre
nonmetallic, submetallic, resinous
35
sphalerite streak
white to yellowish brown
36
cinnabar colour
bright red to brownish red
37
cinnabar specific gravity
8 to 8.2
38
cinnabar main identifier
in a bag
39
molybdenite colour
bluish grey to silbver
40
molybdenite lustre
metallic
41
molybdenite hardness
1 - 2
42
cracked jolly rancher
apatite
43
minecraft salt
halite
44
minecraft himilayan salt
sylvite
45
flakey metallic fish scale
molybdenite
46
covellite hardness
1.5 to 2
47
covellite colour
indigo blue, ble, blue, black
48
covellite lustre
metallic
49
chalcopyrite streak
greenish
50
chalcopyrite bitter ?
yes
51
chalcopyrite main description
cheap gold spraypaint
52
is chalcopyrite brittle
yes
53
is pyrite softer than chalcopyrite
no
54
is chalcopyrite softer than pyrite
yes
55
pyrrotite colour
bronze
56
pyrrhotite magnetism
yes
57
pyrrhotite fracture
subconchoidal
58
pyrite colour
brass yellow (fools gold lol)
59
pyrite hardness
6-6.5
60
pyrite specfic gravity
4.9-5.2
61
pyrite streak
greenish black
62
marcasite form
tabular / platey
63
marcasite fracture
fibrous
64
arsenopyrite specific gravity
high at 5.9 to 6.2 ish
65
aresenopyrite important
silvery in colour on freshly broken surfaces
66
chalcocite streak
greenish
67
chalcocite tarnish colour
might have purple tarnish on a black with green rock
68
is chalcopyrite brittle
not that i know of
69
is chalcoite brittle
yes maam
70
hematite streak
red
71
hematite specific gravity
5 to 5.3
72
hematite color
black, silver, red, reddish brown, black
73
corundum hardness
9
74
corundum shape and system
trigonal, takes shape with 6 sides
75
bauxite hardness
1 to 3
76
bauxite specific gravity
2 to 2.5
77
ilmenite streak
verryyyyyyyy black
78
ilmenite magnestism
lightly skips when magnet dragged across
79
magnetite magnetism
yes
80
magnetite streak
black
81
magnetite colour
black to silvery grey
82
rutile lustre
adamentine to submetallic
83
rutile colour
red to reddish brown, black, yellow to gold
84
chromite lustre
metallic to submetallic
85
chromite streak
dark brown
86
goethite description colour
orange rust on black (bright)
87
goethite streak
Bright orange
88
goethite look description
needle like
89
is pentlandite brittle
yes
90
is pentlandite magnetic
no
91
my look description of pentlandite
fish scaley
92
pentlandite streak
light bronze to brown
93
pentlandite colour
yellowish bronze
94
gypsum specific gravity
2.3
95
gypsum streak
white
96
gypsum lustre
sugary -> vitreous
97
barite cleavage
3 planes at right angles
98
barite lustre
vitreous to pearly
99
barite specific gravity
4.5 (heavy ish)
100
calcite twinning
twinning is frequent
101
calcite streak
whitec
102
calcite lustre
vitreous
103
rhodochrosite colour
pink
104
rhodochrosite hardness
3.5 - 4
105
magnesite look
marbly look, if not looks like a "rough rock from mideval times"
106
magnesite harness
3.5 - 5
107
magnesite streak
white
108
dolomite hardness
3.5 - 4
109
dolomite streak
white
110
dolomite lustre
vitreous, pearly
111
malachite colour
green
112
malachite hardness
3.5 to 4
113
malachite streak
green
114
azurite streak
light blue
115
azurite lustre
vitreous and earthy
116
