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MINERALOGY > Properties Of Mineral > Flashcards

Properties Of Mineral Flashcards

1
Q

The color of mineral in powdered form

A

Streak

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2
Q

Resistance of mineral to be scratched

A

Hardness

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3
Q

Scale that uses ser of indenting tools or points composed of common mineral objects.

A

Moh scale of hardness

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4
Q

an absolute scale of hardness scale of indentation hardness related to the RATIO BETWEEN THE FORCE AND TIME

A

Knoop scale of hardness

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5
Q

Refers to the common or characteristic shape of a crystal or aggregate of crystal

A

Habit

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6
Q

Type of habit that is fine, slender and needle like crystal

A

Acicular

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7
Q

Type of habit that exhibit narrow bands of different colors as texture

A

Banded

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8
Q

Type of habit that forming a very thin hair

A

Capillary

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9
Q

Type of habit that long and thin columns which resembles to wire

A

Filiform

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10
Q

Type of habit that cavity line with small crystal

A

Geode

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11
Q

Type of habit that forming a small spherical

A

Globular

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12
Q

Ability to reflect light

A

Luster

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13
Q

Caused by absorption or lack of absorption of various wavelengths

A

Colors

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14
Q

Classification of colors that not influenced by certain impurities

A

Idiochromatic

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15
Q

Classification of colors that are influenced by impurities

A

Allochromatic

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16
Q

Classification of colors that the atoms are trapped or has been included whithin the crystal lattice

A

Chromophores

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17
Q

Ability of the light to pass through

A

DIAPHANEITY

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18
Q

Classification of diaphaneity that the ratio of light in air and velocity of light in a medium

A

Refractive index

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19
Q

Classification of diaphaneity that light oass through them and moves in all direction

A

Isotropic minerals

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20
Q

Classification of diaphaneity that do not have an isotropic crystal system

A

Anisotropic minerals

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21
Q

Classification of diaphaneity that can produce a double image in an object behinf

A

Double refraction

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22
Q

Type of diaphaneity that light passses through and producing a clear image

A

Transparent

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23
Q

Type of diaphaneity that light does jot completely pass through and producing a blurred image

A

Semi transparent

24
Q

Type of diaphaneity that no image can be seen but light can only seen through the edges of the mineral

A

Translucent

25
Q

Type of diaphaneity that no light can pass through

A

Opaque

26
Q

Planes of weak bonds within the crystal lattice

A

Cleavage

27
Q

6 cleavage, 12 faces

A

Dodecahedral

28
Q

4 Cleavage and 8 faces

A

Octahedral

29
Q

3 cleavage and 6 faces at right angle

A

Cubic

30
Q

3 cleavage and 6 faces but not in right angle

A

Rhombohedral

31
Q

2 clevage and 4 faces

A

Prismatic

32
Q

1 cleavage and 2 faces

A

Basal

33
Q

The appearance of the mineral when it does not break along the cleavage plane

A

Fracture

34
Q

Type of fracture that the surface has a rounded protuberance accompanied by circular grooves

A

Conchoidal

35
Q

Type of fracture that the surface has no protuberance

A

Even

36
Q

Type of fracture that the surface has a certain larger parts resembling to fibers

A

Fibrous

37
Q

Type of fracture that the surface is jagged and with sharp edges

A

Hackly

38
Q

Type of fracture that the surface is entirely interrupted by angular large and small protuberance

A

Uneven

39
Q

Intergrowth of two or more crystal from the same point

A

Twinning

40
Q

Ability ti seperate without any cleavage to slip or seperate

A

Parting

41
Q

1 hydrogen proton

A

Protium

42
Q

Hydrogen that has 1 proton and neutron

A

Deuterium

43
Q

Hydrogen that has 1 proton and 2 neutron

A

Tritium

44
Q

Example of coupled ionic substitution

A

Plagioclase feldspar (Na,Ca)(Si,Al) Si2O8

45
Q

Example of limited ionic substitution

A

Calcite and magnesite

46
Q

Appearance of different colors when a crystal is viewed in transmitted light in different directions.

A

Pleochroism

47
Q

Some minerals will emit visible light when
heated below red heat.

A

Themoluminesence

48
Q

Shows a series of colors due to light undergoing reflective interferences with itself either on the surface in the interior.

A

Iridescene

49
Q

Pearly reflection from the interior of a mineral, like the effect of a glass of water to which a few drops of mil have been added.

A

Opalescene

50
Q

Minerals with an isometric crystal system that
have
light pass through them and moves in all directions with equal velocity, hence, a single refractive index.

A

Isotropic minerals

51
Q

Minerals that do not have an isometric crystal system with light passing through them and have varying velocities of light moving in different directions and orientations, hence, more than one refractive index.

A

Anisotropic minerals

52
Q

Minerals that are strongly attracted to magnets,

A

Ferromagnetic

53
Q

Minerals that tend to create its own magnetic field

A

Ferromagnetic

54
Q

Minerals that have have a net magnetic moment equal to zero.

A

Anti ferromagnetic

55
Q

Two direction have two distinct colors

A

Dichroism

MINERALOGY (32 decks)

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