Travertine

Ganister

Travertine and Ganister

Travertine

Ganister

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Definition

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

A ganister is a hard, fine-grained quartzose sandstone or orthoquartzite which is basically used in the manufacture of silica brick typically used to line furnaces and is a type of sedimentary rocks.

History

Origin

Italy

England

Discoverer

Marcus Vitruvius Pollio

Unknown

Etymology

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

From gan′is-ter i.e a hard, close-grained siliceous stone, often forming the stratum which underlies a coal-seam

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Texture

Banded

Clastic, Granular, Rough

Color

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

Beige, Black, Brown, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Fibrous

Rough

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Cement Manufacture, Construction Aggregate, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

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

An Oil and Gas Reservoir, In aquifers, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones

Types

Thermal Travertine and Tufa

Siliceous rock

Features

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

Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

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

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Formation

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.

Ganisters are formed by the destruction of easily weathered minerals mainly feldspar, within the surface horizon of soil by soil-forming processes.

Composition

Mineral Content

Calcite, Clay, Feldspar, Micas, Quartz

Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz

Compound Content

Ca, NaCl, CaO, Oxygen

Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3-46-7

1 7

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Grain Size

Fine Grained

Coarse or Fine

Fracture

Splintery

Streak

White

Porosity

Highly Porous

Luster

Dull to Pearly

Dull

Compressive Strength

80.00 N/mm²95.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.6

Specific Gravity

1.682.2-2.8

0 8.4

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Transparency

Opaque

Density

2.71 g/cm³2.2-2.8 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

1.09 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

China, Russia

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

Africa

Namibia, Nigeria, South Africa

Europe

Austria, Italy, Portugal, United Kingdom

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Bolivia, Ecuador

Brazil

Deposits in Oceania Continent

Australia

New South Wales, New Zealand

All about Travertine and Ganister Properties

Know all about Travertine and Ganister properties here. All properties of rocks are important as they define the type of rock and its application. Travertine and Ganister belong to Sedimentary Rocks.Texture of Travertine is Banded whereas that of Ganister is Clastic, Granular, Rough. Travertine appears Fibrous and Ganister appears Rough. The luster of Travertine is dull to pearly while that of Ganister is dull. Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors whereas Ganister is available in beige, black, brown, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery and that of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.