Norite

Travertine

Norite and Travertine

Norite

Travertine

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Definition

Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine

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

History

Origin

Norway

Italy

Discoverer

Unknown

Marcus Vitruvius Pollio

Etymology

From the Norwegian name for Norway, Norge

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

Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Phaneritic

Banded

Color

Dark Grey to Black

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

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined and Shiny

Fibrous

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, 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

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones

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

Types

Ultramafic intrusive rock

Thermal Travertine and Tufa

Features

Smooth to touch

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

Absent

Present

Formation

Norite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

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

Augite, Olivine, Plagioclase, Pyroxene

Calcite, Clay, Feldspar, Micas, Quartz

Compound Content

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

Ca, NaCl, CaO, Oxygen

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Cataclastic Metamorphism, Impact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

73-4

1 7

👆🏻

Grain Size

Coarse Grained

Fine Grained

Fracture

Conchoidal

Splintery

Streak

Black

White

Porosity

Highly Porous

Luster

Dull to Pearly

Compressive Strength

225.00 N/mm²80.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.6

Specific Gravity

2.86-2.871.68

0 8.4

👆🏻

Transparency

Opaque

Density

2.7-3.3 g/cm³2.71 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.52 kJ/Kg K1.09 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

China, Russia

Africa

South Africa

Europe

Germany, Greece, Italy, Scotland, Turkey

Austria, Italy, Portugal, United Kingdom

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

South America

Brazil, Colombia, Venezuela

Argentina, Bolivia, Ecuador

Deposits in Oceania Continent

Australia

New Zealand, Queensland

All about Norite and Travertine Properties

Know all about Norite and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Norite belongs to Igneous Rocks while Travertine belongs to Sedimentary Rocks.Texture of Norite is Phaneritic whereas that of Travertine is Banded. Norite appears Veined and Shiny and Travertine appears Fibrous. The luster of Norite is while that of Travertine is dull to pearly. Norite is available in dark grey to black colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Norite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.