Andesite

Travertine

Andesite and Travertine

Andesite

Travertine

Add ⊕

Definition

Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava

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

History

Origin

North America

Italy

Discoverer

Theodor von Gümbel

Marcus Vitruvius Pollio

Etymology

From Andes mountains, where it is found in abundance

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

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Aphanitic to Porphyritic

Banded

Color

Bluish - Grey, Grey, Pink, Yellow

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

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Soft

Fibrous

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration, Kitchens

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Exterior Uses

Office Buildings, Roof Tiles

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

Other Architectural Uses

Curbing

Industry

Construction Industry

Cobblestones, Construction Aggregate, for Road Aggregate

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

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

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

Types

Icelandite

Thermal Travertine and Tufa

Features

Generally rough to touch, High silica content, Is one of the oldest rock

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

Archaeological Significance

Monuments

Famous Monuments

Middle of the Earth in Ecuador

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

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

Andesite is a fine-grained igneous rock that forms when the magma is erupted onto the surface and is crystallized quickly.

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.

Composition

Mineral Content

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon

Calcite, Clay, Feldspar, Micas, Quartz

Compound Content

Silicon Dioxide

Ca, NaCl, CaO, Oxygen

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

73-4

1 7

👆🏻

Grain Size

Very fine-grained

Fine Grained

Fracture

Uneven

Splintery

Streak

White

Porosity

Less Porous

Highly Porous

Luster

Vitreous

Dull to Pearly

Compressive Strength

225.00 N/mm²80.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.1

Specific Gravity

2.5-2.81.68

0 8.4

👆🏻

Transparency

Opaque

Density

2.11-2.36 g/cm³2.71 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

2.39 kJ/Kg K1.09 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Indonesia, Japan, Nepal, South Korea

China, Russia

Africa

Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania

Europe

Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom

Austria, Italy, Portugal, United Kingdom

Others

Deposits in Western Continents

North America

Mexico, USA

Canada, USA

South America

Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Argentina, Bolivia, Ecuador

Deposits in Oceania Continent

Australia

New South Wales, New Zealand, Western Australia

All about Andesite and Travertine Properties

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