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Corel Day 2 > phosphates > Flashcards

phosphates Flashcards

1
Q

apatite formula

A

basta naay Ca

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2
Q

apatite crystal form

A
  • hexagonal
  • long prismatic, short prismatic
  • massive granular to compact
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3
Q

apatite cleavage

A

basal poor

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4
Q

apatite hardness

A

5

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5
Q

apatite specific gravity

A

3.15 to 3.20

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6
Q

apatite color

A

vitreous to subresinous. transparent to translucent. brown green, colorless, blue violet

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7
Q

apatite occurrence

A

widely distributed
- pematites
- hydrothermal veins
- bones and teeth
- fine grained to micro secondary minerals
- coarse in limestone and marble
- cryptocrystalline collophane in phosphorite / phosphate rocks

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8
Q

apatite remarks

A

hexagonal, color, inferior hardness

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9
Q

amblygonite formula

A

basta naay Li

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10
Q

amblygonite crystal form

A
  • triclinic
  • coarse cleavable masses
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11
Q

amblygonite cleavage

A

100 perfect

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12
Q

amblygonite hardness

A

6

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13
Q

amblygonite specific gravity

A

3 to 3.1

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14
Q

amblygonite color

A

vitreous, pearly on 100, translucent. white, blue, rare yellow, pale green

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15
Q

amblygonite occurrence

A

lithium bearing granite pegmatites

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16
Q

amblygonite remarks

A
  • red flame test
  • less perfect cleavage with albite and higher specific gravity
17
Q

turquoise formula

A

basta naay Cu

18
Q

turquoise crystal form

A
  • rarely triclinic crystals
  • massive compact
  • reniform, stalactitic
  • disseminated, incrustations and thin seams
19
Q

turquoise cleavage

A

basal perfect

20
Q

turquoise hardness

A

6

21
Q

turquoise specific gravity

A

2.6 to 2.8

22
Q

turquoise color

A

waxlike. blue buish green green

23
Q

turquoise occurrence

A
  • stringers in decomposing volcanic rocks in arid regions
  • secondary mineral in small veins
24
Q

turquoise remarks

A
  • color
  • harder than chrysocolla

Corel Day 2 (17 decks)

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