CaCO3

Carbonate,

White,

Vitreous to earthy

3

Transparent to translucent

Colorless to white, but may be yellow, green, blue, red, black

1 cleavage,

hexagonal,

fertitilizaer, raw material for portland cement, and building stone

SiO2(Oxides)

Hexagonal

Specific gravity is 3

Vitreous to waxy conchoidal

7 hardness

uses: arrow head, jewelry

hardness 2-3

feels slippery

earthy to waxy

density:3

greenish color

cleavage 1

streak is pale green to white

monolithic

Al203

Oxides

Hexagonal prisms

adamantine to vitreous

red, pink, blue, or yellow color

conchoidal fracture

dens 4

opaque to translucent

hardness 9

use: abrasive, sapphires and rubics

flourite

CaF2

cubic

conchoidal or spintery fracture

cleavate: octahedral

white streak

halide,

colorless, yellow, green, blue, purple

transparent to translucent

vitreous,

hardness 4

Pbs

cubic

metallic

lead gray color

lead greay streak

dens:7-5 heavy

cleavage: 3

uses: source of lead as a metal

hardness 2-5

Fe, Mg, Ca, Mn, Al sillicate

color varies,

crystal form: dodecahedron

 conchoidal fracture

crystal system: cubic

hardness: 6.5-7.5

vitreous to resinous

uses: semi-precious gem, abrasive

FeO(OH)

orthorhombic

cleavage: 1

streak brown-yellow

fracture-irregular

luster: earthy to dull

dens: 4.37

crystal form: reniform or botryoidal

hardness 5-5.5

uses ore of iron

C

greasy

dark gray to black

dens 2.2

fracture uneven

metallic luster

hardness 1-2

streak gray

hexagonal

cleavage 1

uses: pencil lead, ddry lubricant

NaCl

colorless to white

table salt

vitreous

hardness 2.5

cubic

transp-transl

cleavage 3

monoclinic

hardness 5-6

streak white

uneven fracture

cleavage 2

color-dark green to black

use: interest to collectors

vitreous

dens:3-3.4

(Ca, Na) AlSi3O8

Color Graysih blue

harnesss 6

vitreous to dull

triclinic

dens 2.6

conchoidal fracutre

cleav : 2

uses: ornamental stone

Fe3O4

Black,

hardness 5.5-6

dull luster

strongly magnetic

dens: 5

fracture-irregualar

streak: gray to black

isometric-cubic

SiO2

uses: Jewelry

hexagonal

conchoidal fracture

white/none streak

vitreous

color white

hardness 7

muscovite

KAl2(AlSi3O10) (OH)2

vitreous

silky

dens: 2.8

clv-1

monoclinic

hardness 2.5-3

white

uses: electrical insilator, windor for ovens

color: colorless to brown

fracture-uneven

vitreous

no streak

hardness-6.5-7

olive green to dark

dens: 3

conchoidal fracture

Fe203

hexagonal

red to brown streak

hardness-5-6

earthy luster

dense: 6

fracture: irregular

color red reddish brown

KAlSi3O8

dens: 2.57

cleavage: 2

monoclinic

vitreous

hard-6

white to pink color

unevan tracture

pyrite

FeS2

brassy yellow color

dens: 5.02

hard: 6-6.5

metallic

cubic or octahedral form

striations may be visible

sulfiric acid uses

streak: greenish to brownish black

albite

NaAlSi306

vitreaous

hard-6

white to gray

moonstone

triclinic

striations may be visible

clvg 2

fracture uneven

clvg 2

color dark green to black

vitreous to dull

hardness  5-6

no streak

monoclinic

dens: 3-3.5

uses: interest to collectors

Al0(OH)

various

mineraloid

uneven fracture

hardness 1-3

streak yellow-brown

dull to earthy

use: aluminum ore

K(Mg, Fe)3 (AlSi3010) (OH2)

vitreous to pearly

clvg 1

fracture

perpendicular to clgv

hard-2.5-3

color-black to dark brown

monoclinic

brown to dark green

use: interest to collectors

sparkly goldish stuff over black

Fe203

color steel gray to black

metallic

dens: 5.26

fracture: irrecgular

hardness 5.5-6.5

streak: red brown

may be slightly magnetic

hexagonal

use: iron ore

earthy luster

fracture

dens: 2.6

triclinic

hardness: 2

streak: white

clvg: 1

feels like chalk

uses: filler in medicine, candy, rubber, and china clay

Fe0(OH)

botryoidal

earthy to dull

dens: 4

hardness 5-5.5

fracture

streak: yellow to brown

prigment and iron ore

Si02

hexagonal

rose pink

vitreous

conchoidal fracture

white streak

hardness 7

ZnS

cubic

cleavage: dodecahedral

luster: resinous

hardness: 3.5-4

use: zinc ore

dens: 4

S

hard-1.5-2.5

conchoidal

color-yellow

resinous to greasy

use-sulfuric acid, medicine

system: orthorhombic

hard 1

streak-white

use: talcum powder

pearly to dull luster

clvg-1

CaSO4n2H20

Hardness 2

SiO2

Hardness 7

fracture: conchoidal

vitreous

black or brown

hexagonal

white streak

Hardness 7

striations on crystal

vitrous

conchoidal

hexagonal