Shale

Travertine

Shale and Travertine

Shale

Travertine

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1 Definition

1.1 Definition

Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles

Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters

1.2 History

1.2.1 Origin

Unknown

Italy

1.2.2 Discoverer

Unknown

Marcus Vitruvius Pollio

1.3 Etymology

From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,

From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy

1.4 Class

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Clastic, Splintery

Banded

2.2 Color

Black, Brown, Buff, Green, Grey, Red, Yellow

Beige, Black, Blue, Brown, Grey, Red, White, Yellow

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Muddy

Fibrous

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

3.1.2 Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Sculpture

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork, Pottery

Cemetery Markers, Creating Artwork, Gemstone, Jewelry, Paper Industry, Pottery

4 Types

4.1 Types

Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale

Not Available

4.2 Features

Easily splits into thin plates, Generally rough to touch, Very fine grained rock

Stalactites and stalagmites are formed from this rock, Surfaces are often shiny, Very fine grained rock

4.3 Archaeological Significance

4.3.1 Monuments

Used

4.3.2 Famous Monuments

Jantar Mantar in India

Colosseum in Rome, Italy, Sacré Coeur in Paris, France, Trevi Fountain in Rome, Italy

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Used

4.4 Fossils

Present

5 Formation

5.1 Formation

Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.

Travertine is a type of sedimentary rock formed when a river carries or transports pieces of broken rock which then undergo sedimentation. They are then subjected to high temperature and pressure hence forming travertine rock.

5.2 Composition

5.2.1 Mineral Content

Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides

Calcite, Clay, Feldspar, Micas, Quartz

5.2.2 Compound Content

Ca, Fe, Mg, Silicon Dioxide, Sodium

Ca, NaCl, CaO, Oxygen

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

33-4

1 7

6.1.2 Grain Size

Very fine-grained

Fine Grained

6.1.3 Fracture

Not Available

Splintery

6.1.4 Streak

White

6.1.5 Porosity

Highly Porous

6.1.6 Luster

Dull

Dull to Pearly

6.1.7 Compressive Strength

95.00 N/mm²80.00 N/mm²

0.15 450

6.1.8 Cleavage

Slaty

Non-Existent

6.1.9 Toughness

2.6

6.1.10 Specific Gravity

2.2-2.81.68

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

2.4-2.8 g/cm³2.71 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.39 kJ/Kg K1.09 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant

Impact Resistant, Pressure Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Bangladesh, China, India, Russia

China, Russia

7.1.2 Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

Not Yet Found

7.1.3 Europe

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland

Austria, Italy, Portugal, United Kingdom

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

USA

Canada, USA

7.2.2 South America

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Argentina, Bolivia, Ecuador

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Queensland, Victoria, Western Australia

Not Yet Found

All about Shale and Travertine Properties

Know all about Shale and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Shale and Travertine belong to Sedimentary Rocks.Texture of Shale is Clastic, Splintery whereas that of Travertine is Banded. Shale appears Muddy and Travertine appears Fibrous. The luster of Shale is dull while that of Travertine is dull to pearly. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Shale are creating artwork, pottery and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.