Blueschist

Travertine

Blueschist and Travertine

Blueschist

Travertine

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1 Definition

1.1 Definition

Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature

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

1.2 History

1.2.1 Origin

USA

Italy

1.2.2 Discoverer

Edgar Bailey

Marcus Vitruvius Pollio

1.3 Etymology

From French schiste, Greek skhistos i.e. split

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

1.4 Class

Metamorphic Rocks

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, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Foliated

Banded

2.2 Color

Blue, Bluish - Grey, Purple, Shades of Blue

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

Dull and Banded

Fibrous

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Floor Tiles, Flooring, Homes, Hotels, Kitchens

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

3.1.2 Exterior Uses

Garden Decoration, Office Buildings

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

3.1.3 Other Architectural Uses

Not Yet Used

Curbing

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

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, Monuments, Sculpture

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Tombstones

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

4 Types

4.1 Types

Not Available

4.2 Features

Has High structural resistance against erosion and climate, 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

Data Not Available

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

Absent

Present

5 Formation

5.1 Formation

Blueschist forms due to the metamorphism of basalt and other rocks with similar composition at high pressures and low temperatures and approximately corresponding to a depth of 15 to 30 kilometers and 200 to 500 °C.

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, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz

Calcite, Clay, Feldspar, Micas, Quartz

5.2.2 Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

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

Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3.5-43-4

1 7

6.1.2 Grain Size

Fine to Medium Grained

Fine Grained

6.1.3 Fracture

Conchoidal

Splintery

6.1.4 Streak

White to Grey

White

6.1.5 Porosity

Highly Porous

6.1.6 Luster

Dull

Dull to Pearly

6.1.7 Compressive Strength

NA80.00 N/mm²

0.15 450

6.1.8 Cleavage

Slaty

Non-Existent

6.1.9 Toughness

1.5

6.1.10 Specific Gravity

3-3.21.68

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

2.8-2.9 g/cm³2.71 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

NA1.09 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Impact Resistant, Pressure Resistant

Impact Resistant, Pressure Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Japan, Turkey

China, Russia

7.1.2 Africa

Egypt, Ethiopia, South Africa

Not Yet Found

7.1.3 Europe

France, Greece, Iceland

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

Not Yet Found

Argentina, Bolivia, Ecuador

7.3 Deposits in Oceania Continent

7.3.1 Australia

New Zealand

Not Yet Found

All about Blueschist and Travertine Properties

Know all about Blueschist and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Blueschist belongs to Metamorphic Rocks while Travertine belongs to Sedimentary Rocks.Texture of Blueschist is Foliated whereas that of Travertine is Banded. Blueschist appears Dull and Banded and Travertine appears Fibrous. The luster of Blueschist is dull while that of Travertine is dull to pearly. Blueschist is available in blue, bluish - grey, purple, shades of blue colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Blueschist are cemetery markers, commemorative tablets, creating artwork, curling, tombstones and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.