SULPHATESMining Engineering of Hasanuddin University

2013-2014

Barit (BaSO4)Physical Properties of Barit

Crystal

System

Orthorhombic

Color Sometimes transparent, white, red,

green and yellow

Streak White

Luster Vitreous (Glassy) to pearly

Cleavage Perfect

Fracture Uneven

Hardness 2,5-3,5

Specific

Gravity

4,5 g/cm3

Use Used for in mud when drilling for oil, in

the paper and rubber industries, and

radiography.

Barit (BaSO4)

Celestite (SrSO4)Physical Properties of Celestite

Crystal

System

Orthorhombic

Color Sometimes transparent, pure

white, blue, green and yellow

Streak White

Luster Vitreous (Glassy)

Cleavage Perfect

Fracture Choncoidal

Hardness 3 - 3,5

Specific

Gravity

3.95 – 3,97 g/cm3

Use Used in the manufacture, nuclear

industry, fireworks & flares, paint

and electrical batteries.

Celestite (SrSO4)

Gipsum(CaSO4 . 2H2O)Physical Properties of Gipsum

Crystal

System

Monoclin

Color Sometimes colorless or

transparant, white, gray, red, green

and brown

Streak White

Luster Silky luster

Cleavage Perfect

Fracture Choncoidal

Hardness 2

Specific

Gravity

2,32 g/cm3

Use Used in the constructions industry

and as a fertilizers

Gipsum (CaSO4 . 2H2O)

Chalcanthite(CuSO4 • 5H2O)Physical Properties of Chalcanthite

Crystal

System

Triclin

Color Sometimes green, bluish green,

blue, and dark blue

Streak White

Luster Vitreous (Glassy)

Cleavage Almost Perfect / imperfect

Fracture Conchoidal

Hardness 2,5

Specific

Gravity

2.2 - 2.3 g/cm3

Use Used as an ore of copper and as

mineral collection

Chalcanthite (CuSO4 • 5H2O)

Anglesite(PbSO4)

Physical Properties of Anglesite

Crystal System

Trigonal

Colorusually colorless, white and yellow; also pale gray, blue and green.

Luster Vitreous

Streak White

Cleavage perfect

Fracture Conchoidal

Mohs Hardness

2,5-3

Specific Gravity

6,4

Uses as a ingredient for timbal

Glauberite(Na2Ca(SO4) 2)

Physical Properties of Glauberite

Crystal System

Monoclinic

Colorordinarily white, yellow, gray or colorless

Luster Vitreous

Streak White

Cleavage Perfect

Fracture conchoidal

Mohs Hardness

2,5 to 3

Specific Gravity

2,7to 2,8

UsesAs a material for making salt Glauber

Thenardite(Na2SO4)

Physical Properties of Thenardite

Crystal System

Orthorhombic

ColorColourless, greyish white, yellowish, brownish or reddish

Luster Vitreous to pearly

Streak White

Cleavage Perfect

Fracture Uneven

Mohs Hardness

2,5 to 3

Specific Gravity

2,66

UsesAs a source of sodium to produce soda

Alunite(KAl3(SO4)2(OH)6)

Physical Properties of Alunite

Crystal System

Trigonal

ColorUsually white, greyish, reddish, yellowish, or brown

Luster Vitreous until pearly

Streak White

Cleavage distinct

Fracture conchoidal

Mohs Hardness

3.5 to 4

Specific Gravity

2,6 to 2,9

UsesAs the source of manufacture of alum, potassium, aluminum in small or low levels

Antlerite

(Cu4SO4(OH)4)Physical Properties of Antlerite

Crystal

system

Orthorhombic

Color Bright green, through darker

greens to black

Streak Pale Green

luster Viltreos

cleavage perfect

Fracture Uneven

Hardness 3 – 3,5

Specivic

Gravity

3,9

Use as a corrosion product on

outdoor bronze and copper

sculpture

Brochantite

(Cu4SO4(OH)6)Physical Properties of Brochantite

Crystal

system

Monoclinic

Color Bright green, through

darker greens to black

Streak Pale Green

Luster Vitreous - pearly

Cleavage Perfect

Fracture Conchoidal - brittle

Hardness 3,5 – 4,0

Specific

Gravity

3,97

Use As an ornament stone

walls and floors of the

building

Anhydrite (CaSO4)

Physical Properties of Anhydrite

Crystal

system

Orthorhombic

Color Colourless, white, bluish-

white, violet white,

brown, gray

Streak White to light gray

Luster Vitreous - pearly

Cleavage Nearly Perfect

Fracture Conchoidal

Hardness 3,0 – 3,5

Specific

Gravity

3,0

Use For production of sulfuric

acid, filter in paper, and

ornamental stone

Epsomite(MgSO4 . 7H2O)

Physical Properties of Epsomite

Crystal

system

Orthorhombic

Color Colourless to white, gray

or pink, greenish

Streak White

Luster Vitreous

Cleavage Perfect

Fracture Conchoidal

Hardness 2,0 – 2,5

Specific

Gravity

1,7

Use For Epsom salt,

pharmation production,

sugar and paper

production

Meridianiite(MgSO4 . 11H2O)

Physical Properties of Meridianiite

Crystal

system

Triclinic

Color White or clear to

colourless

Streak White

Luster Vitreous – Dull

Cleavage -

Fracture -

Hardness 3

Specific

Gravity

1,5

Use For Epsom salt,

pharmation production,

sugar and paper

production

Hanksite(Na22K(SO4)9(CO3)2Cl)

Physical Properties of Hanksite

Crystal

system

Hexagonal - dipyramidal

Color Colourless to pale yellow,

grayish greean

Streak White

Luster Vitreous – Dull

Cleavage Good

Fracture Uneven

Hardness 3,0-3,5

Specific

Gravity

2,562

Use Only as mineral

specimens

Linarite (PbCu[(OH)2|SO4])

Physical Properties of Linarite

Crystal

system

Monoclinic

Color Bright blue to deep blue

Streak White to light blue

Luster Sub Adamantine -

Vitreous

Cleavage Perfect

Fracture Chonchoidal

Hardness 2,5

Specific

Gravity

5,3 – 5,5

Use Of interest mainly to

mineralogist and

collectors.

1,5 mm

Copiapite(Fe2+Fe3+

4(SO4)6(OH)2·20(H2O))

Physical Properties of Copiapite

Crystal

system

Triclinic

Color Sulfur-yellow to orange

when crystalline, greenish-

yellow to olive-green when

massive

Streak White to light yellow

Luster Pearly

Cleavage Perfect

Fracture Uneven

Hardness 2,5 – 3,0

Specific

Gravity

2,04 – 2,17

Use Of interest mainly to

scientists and collectors.

Cyanotrichite(Cu4Al2[(OH)12|SO4]·2H2O)

Physical Properties of Cyanotrichite

Crystal

system

Orthorhombic

Color Sky-blue, azure-blue

Streak White to light blue

Luster Silky

Cleavage Perfect

Fracture Uneven

Hardness 1,0 – 1,5

Specific

Gravity

2,76

Use Of interest mainly to

scientists and

collectors.

3,8 cm

THANK YOUMining Engineering of Hasanuddin University

2013-2014