Troctolite

Oolite

Troctolite and Oolite

Troctolite

Oolite

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Definition

Troctolite is a mafic intrusive rock type. It consists essentially of major but variable amounts of olivine and calcic plagioclase along with minor pyroxene. It is an olivine-rich anorthosite, or a pyroxene-depleted relative of gabbro

Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite

History

Origin

Discoverer

Christian Leopold von Buch

William Smith

Etymology

From German Troklotit, from Greek trōktēs, a marine fish (taken to be trout)

From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Volcanic

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Phaneritic

Clastic or Non-Clastic

Color

Dark Grey to Black

Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined and Shiny

Rounded and Rough

Uses

Architecture

Interior Uses

Bathrooms, Countertops, Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration, Kitchens

Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

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

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

Cement Manufacture, Cobblestones, Landscaping

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture

Artifacts

Other Uses

Commercial Uses

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

Creating Artwork, Jewelry, Used in aquariums

Types

Ultramafic rock

Pisolitic Oolite and Oncolitic Oolite

Features

Smooth to touch

Available in lots of colors, Generally rough to touch, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

Troctolite 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.

Oolites form when layers of calcite are deposited around a sand grain or fossil piece and are rolled around in calm water, which makes them round.

Composition

Mineral Content

Augite, Olivine, Plagioclase, Pyroxene

Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt

Compound Content

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

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

Chemical Erosion, Coastal Erosion

Properties

Physical Properties

Hardness

73-4

1 7

👆🏻

Grain Size

Coarse Grained

Fine Grained

Fracture

Conchoidal

Streak

Black

White

Porosity

Highly Porous

Less Porous

Luster

Pearly to Shiny

Compressive Strength

225.00 N/mm²40.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.6

Specific Gravity

2.86-2.87-9999

0 8.4

👆🏻

Transparency

Opaque

Density

2.7-3.3 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.65 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam

Africa

South Africa

Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe

Europe

Germany, Greece, Italy, Scotland, Turkey

United Kingdom

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

USA

South America

Brazil, Colombia, Venezuela

Colombia

Deposits in Oceania Continent

Australia

New Zealand, Queensland

Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula

All about Troctolite and Oolite Properties

Know all about Troctolite and Oolite properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite belongs to Igneous Rocks while Oolite belongs to Sedimentary Rocks.Texture of Troctolite is Phaneritic whereas that of Oolite is Clastic or Non-Clastic. Troctolite appears Veined and Shiny and Oolite appears Rounded and Rough. The luster of Troctolite is while that of Oolite is pearly to shiny. Troctolite is available in dark grey to black colors whereas Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors. The commercial uses of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Oolite are creating artwork, jewelry, used in aquariums.