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Rhyodacite
Rhyodacite

Travertine
Travertine



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Rhyodacite
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Travertine

Rhyodacite vs Travertine

Definition

Definition

Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters

History

Origin

USA
Italy

Discoverer

Unknown
Marcus Vitruvius Pollio

Etymology

Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite
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, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

Volcanic
-

Other Categories

Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Earthy
Banded

Color

Black to Grey, Dark Greenish - Grey
Beige, Black, Blue, Brown, Grey, Red, White, Yellow

Maintenance

More
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Skeletal
Fibrous

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping
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
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

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

Types

Types

Intermediate volcanic rock
Thermal Travertine and Tufa

Features

Available in Lots of Colors and Patterns
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

Formation

Rhyodacite 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

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon
Calcite, Clay, Feldspar, Micas, Quartz

Compound Content

Ca, Fe, Potassium Oxide, Potassium, 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
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

5.5-63-4
1 7
👆🏻

Grain Size

Fine Grained
Fine Grained

Fracture

Conchoidal
Splintery

Streak

Black
White

Porosity

Less Porous
Highly Porous

Luster

Greasy to Dull
Dull to Pearly

Compressive Strength

200.50 N/mm280.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

2.1
1

Specific Gravity

2.34-2.401.68
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

-9999 g/cm32.71 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

1.12 kJ/Kg K1.09 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant
Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
China, Russia

Africa

Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
-

Europe

Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland
Austria, Italy, Portugal, United Kingdom

Others

-
-

Deposits in Western Continents

North America

Canada, USA
Canada, USA

South America

-
Argentina, Bolivia, Ecuador

Deposits in Oceania Continent

Australia

-
-

Rhyodacite vs Travertine Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Rhyodacite and Travertine Reserves. Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Rhyodacite vs Travertine information and Rhyodacite vs Travertine characteristics in the upcoming sections.

Rhyodacite vs Travertine Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Rhyodacite vs Travertine characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Rhyodacite and Properties of Travertine. Learn more about Rhyodacite vs Travertine in the next section. The interior uses of Rhyodacite include Decorative aggregates and Interior decoration whereas the interior uses of Travertine include Decorative aggregates, Entryways, Flooring, Homes and Interior decoration. Due to some exceptional properties of Rhyodacite and Travertine, they have various applications in construction industry. The uses of Rhyodacite in construction industry include As dimension stone, Construction aggregate, For road aggregate, Landscaping and that of Travertine include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate, Raw material for the manufacture of mortar.

More about Rhyodacite and Travertine

Here you can know more about Rhyodacite and Travertine. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Rhyodacite and Travertine consists of mineral content and compound content. The mineral content of Rhyodacite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon and mineral content of Travertine includes Calcite, Clay, Feldspar, Micas, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Rhyodacite vs Travertine, the texture, color and appearance plays an important role in determining the type of rock. Rhyodacite is available in black to grey, dark greenish - grey colors whereas, Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. Appearance of Rhyodacite is Skeletal and that of Travertine is Fibrous. Properties of rock is another aspect for Rhyodacite vs Travertine. The hardness of Rhyodacite is 5.5-6 and that of Travertine is 3-4. The types of Rhyodacite are Intermediate volcanic rock whereas types of Travertine are Thermal Travertine and Tufa. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Rhyodacite is black while that of Travertine is white. The specific heat capacity of Rhyodacite is 1.12 kJ/Kg K and that of Travertine is 1.09 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Rhyodacite is heat resistant whereas Travertine is impact resistant, pressure resistant, wear resistant.