Mineralogy Test Study Guide

Front 1

What do you call the study of minerals, their occurence, properties, composition and classification?

Back 1

Mineralogy

Front 2

What are the 5 things to determine something is a mineral?

Back 2

1. inorganic
2. definite chemical composition
3. solid
4. crystalline
5. naturally occuring

Front 3

What do you call the relative scratchability--harder minerals can scratch softer minerals, softer minerals cannot scratch harder minerals?

Back 3

Hardness

Front 4

What is the softest mineral?

Back 4

Talc

Front 5

What is the hardest mineral?

Back 5

Diamond

Front 6

What do you call the scale----a standard of ten minerals by which the hardness of minerals can be rated?

Back 6

Moh's Hardness Scale

Front 7

What do you call the color of the solid mineral...unreliable?

Back 7

Color

Front 8

What do you call the color of the finely powdered minerak as seen on a white porcelain streak plate?

Back 8

Streak

Front 9

What do you call the irregular breakage of the mineral?

Back 9

Fracture

Front 10

What are the 4 types of fracture?

Back 10

1. Conchoidal
2. Splintery
3. Hackly
4. Uneven

Front 11

--------means smooth, curved fracture resembling the interior surface of a shell; most commonly observed in glass and quartz

Back 11

Conchoidal

Front 12

--------means the mineral breaks into splinters

Back 12

Splintery

Front 13

----------means the mineral has jagged fractures with sharp edges

Back 13

Hackly

Front 14

--------meam the fratcures of the mineral produces rough, irregula surfaces

Back 14

Uneve or irregular

Front 15

What do you call the breakage of minerals along surfaces related to crystal structure....rated as perfect, good, distinct, or indistinct?

Back 15

Cleavage

Front 16

-----------------means the number of times heavier than water, related to density.

Back 16

Specific Gravity

Front 17

What equation is used to find the specific gravity?

Back 17

Density=Mass/Volume

Front 18

What do you call the manner in which crystal planes are oriented to each other?

Back 18

crystal system

Front 19

--------tree unequal axes all intersecting at oblique angles.

Back 19

triclinic

Front 20

-------------3 unequal axes, 2 of which are inclined to each other at an oblique angle, and the 3rd perpendicular to the plane of the the other 2.

Back 20

monoclinic

Front 21

---------- 3 mutually perpendicular axes all of different lengths.

Back 21

orthorhombic

Front 22

----------3 mutually perpendicular axes, 2 of which (the horizontal axes) are of equal lenght, and the 3rd is shorter than the other 2.

Back 22

Tetragonal

Front 23

----------having 4 zxes, 3 equal horizontal axes intersecting each other at angles of 120degress, the 4th axes of different length and perpendicular to the plane of the other 3.

Back 23

Hexagonal

Front 24

------------ 3 mutually perpendicular axes all the of the same length.

Back 24

Isometric

Front 25

What word means the general appearance of a mineral surface in reflected light?

Back 25

Luster

Front 26

--------the appearance of shiny metal.

Back 26

metallic

Front 27

---------having the appearance of glass.

Back 27

Vitreous

Front 28

--------having the appearance of resin.

Back 28

Resinous

Front 29

--------having an iridescent pearl-like luster.

Back 29

Pearly

Front 30

---------having the appearance of soil or clump of dirt.

Back 30

Earthy

Front 31

--------appears to be covered with a thin layer of oil.

Back 31

Greasy

Front 32

---------appearing to be composed of fine fibers, silk-like.

Back 32

Silky

Front 33

---------hard, brilliant luster like that of a diamond.

Back 33

Adamantine

Front 34

What word means the resistance of a mineral to breakage?

Back 34

Tenacity

Front 35

--------shatters easily

Back 35

brittle

Front 36

--------can be pounded into thin sheets.

Back 36

Malleable

Front 37

--------can be stretched into thin wire.

Back 37

ductile

Front 38

---------can easily be deformed.

Back 38

flexible

Front 39

-----------can be deformed, but always returns to its original shape.

Back 39

elastic

Front 40

What word means glowing in the prescence of ultraviolet light?

Back 40

Fluorescence

Front 41

What word means the ability to split a beam of light into two seperate beams of different velocity?

Back 41

Birefringence/ double-refraction

Front 42

What do you call any metal that is found in its metallic form, either pure or as an alloy, in nature?

Back 42

Native Metal

Front 43

What do you call a mixture of mineralised material from which at least one of the contained minerals can be mined and processed at an economic profit?

Back 43

ore