Travertine

Tachylite

Travertine and Tachylite

Travertine

Tachylite

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Definition

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

Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt

History

Origin

Italy

Iceland

Discoverer

Marcus Vitruvius Pollio

Unknown

Etymology

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

From German Tachylite, from tachy- + Greek lutos soluble, melting

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Banded

Vitreous

Color

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

Black, Dark Brown

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Fibrous

Glassy

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Decorative Aggregates, Interior Decoration

Exterior Uses

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

As Building Stone, As Facing Stone, Garden Decoration, 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

Cutting Tool, Knives, Landscaping, Scrapers

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Artifacts

Other Uses

Commercial Uses

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

Cemetery Markers, Creating Artwork

Types

Thermal Travertine and Tufa

Volcanic glass

Features

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

Available in Lots of Colors and Patterns, Clasts are smooth to touch

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

Absent

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.

Tachylite 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.

Composition

Mineral Content

Calcite, Clay, Feldspar, Micas, Quartz

Feldspar, Olivine

Compound Content

Ca, NaCl, CaO, Oxygen

Fe, Mg

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

Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3-45.5

1 7

👆🏻

Grain Size

Fine Grained

Medium to Fine Coarse Grained

Fracture

Splintery

Conchoidal

Streak

White

Vermilion

Porosity

Highly Porous

Less Porous

Luster

Dull to Pearly

Resinous

Compressive Strength

80.00 N/mm²206.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

1.682.4

0 8.4

👆🏻

Transparency

Opaque

Density

2.71 g/cm³3.058 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

1.09 kJ/Kg K0.56 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, Russia

Cambodia, Russia, South Korea

Africa

East Africa

Europe

Austria, Italy, Portugal, United Kingdom

England, Germany, Hungary, Iceland, Scotland, Sweden

Others

Hawaii Islands

Deposits in Western Continents

North America

Canada, USA

USA

South America

Argentina, Bolivia, Ecuador

Deposits in Oceania Continent

Australia

Victoria

All about Travertine and Tachylite Properties

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