Picrite

Travertine

Picrite vs Travertine

Picrite

Travertine

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Definition

Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine

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

History

Origin

Hawaii Islands

Italy

Discoverer

Unknown

Marcus Vitruvius Pollio

Etymology

From Greek pikros bitter + -ite, 19th century

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

Earthy, Rough

Banded

Color

Black, Brown, Green, Grey, Pink, White, Yellow

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

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Shiny

Fibrous

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, for Road Aggregate, Manufacture of Magnesium and Dolomite Refractories, Roadstone, Used for flooring, stair treads, borders and window sills.

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

As a Feed Additive for Livestock, As armour rock for sea walls, Metallurgical Flux, Pottery, Source of Magnesia (MgO)

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

Types

Oceanite

Thermal Travertine and Tufa

Features

Host Rock for Lead

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

Picrite 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

Biotite, Olivine, Plagioclase, Pyrrhotite

Calcite, Clay, Feldspar, Micas, Quartz

Compound Content

Al, CaO, Carbon Dioxide, Mg, MgO

Ca, NaCl, CaO, Oxygen

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

6.83-4

1 7

👆🏻

Grain Size

Fine Grained

Fracture

Uneven

Splintery

Streak

White, Greenish White or Grey

White

Porosity

Less Porous

Highly Porous

Luster

Subvitreous to Dull

Dull to Pearly

Compressive Strength

189.00 N/mm²80.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.1

Specific Gravity

2.75-2.921.68

0 8.4

👆🏻

Transparency

Opaque

Density

1.5-2.5 g/cm³2.71 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.88 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

India, Russia

China, Russia

Africa

South Africa

Europe

Iceland

Austria, Italy, Portugal, United Kingdom

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil

Argentina, Bolivia, Ecuador

Deposits in Oceania Continent

Australia

Picrite 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 Picrite and Travertine Reserves. Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. 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 Picrite vs Travertine information and Picrite vs Travertine characteristics in the upcoming sections.

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Picrite 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. Picrite vs Travertine characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Picrite and Properties of Travertine. Learn more about Picrite vs Travertine in the next section. The interior uses of Picrite include Countertops, Decorative aggregates, Homes and Interior decoration whereas the interior uses of Travertine include Decorative aggregates, Entryways, Flooring, Homes and Interior decoration. Due to some exceptional properties of Picrite and Travertine, they have various applications in construction industry. The uses of Picrite in construction industry include As a sintering agent in steel industry to process iron ore, Cement manufacture, For road aggregate, Manufacture of magnesium and dolomite refractories, Roadstone, Used for flooring, stair treads, borders and window sills. 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 Picrite and Travertine

Here you can know more about Picrite and Travertine. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Picrite and Travertine consists of mineral content and compound content. The mineral content of Picrite includes Biotite, Olivine, Plagioclase, Pyrrhotite 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 Picrite vs Travertine, the texture, color and appearance plays an important role in determining the type of rock. Picrite is available in black, brown, green, grey, pink, white, yellow colors whereas, Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. Appearance of Picrite is Rough and Shiny and that of Travertine is Fibrous. Properties of rock is another aspect for Picrite vs Travertine. The hardness of Picrite is 6.8 and that of Travertine is 3-4. The types of Picrite are Oceanite 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 Picrite and Travertine is white, greenish white or grey. The specific heat capacity of Picrite is 0.88 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.Picrite is heat resistant whereas Travertine is impact resistant, pressure resistant, wear resistant.