Troctolite

Websterite

Troctolite and Websterite

Troctolite

Websterite

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1 Definition

1.1 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

Websterite is ultramafic and ultrabasic rock that consists of roughly equal proportions of orthopyroxene and clinopyroxene. It is a special type of pyroxenite.

1.2 History

1.2.1 Origin

Unknown

Webster, North Carolina

1.2.2 Discoverer

Christian Leopold von Buch

Unknown

1.3 Etymology

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

From the town of Webster located in North Carolina

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Plutonic

1.6 Other Categories

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Phaneritic

Clastic, Granular, Phaneritic, Porphyritic

2.2 Color

Dark Grey to Black

Black to Grey, Bluish - Grey, Dark Greenish - Grey, Green, Light Greenish Grey

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Veined and Shiny

Layered, Banded, Veined and Shiny

3 Uses

3.1 Architecture

3.1.1 Interior Uses

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

Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Interior Decoration

3.1.2 Exterior Uses

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

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

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture

Artifacts

3.4 Other Uses

3.4.1 Commercial Uses

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

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

4 Types

4.1 Types

Not Available

4.2 Features

Smooth to touch

Generally rough to touch, Is one of the oldest rock

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Data Not Available

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Not Used

4.3.6 Petroglyphs

Not Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 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.

Websterite can be formed as cumulates in ultramafic intrusions by accumulation of pyroxene crystals at the base of the lava chamber.

5.2 Composition

5.2.1 Mineral Content

Augite, Olivine, Plagioclase, Pyroxene

Amphibole, Augite, Bronzite, Chromite, Diopside, Enstatite, Garnet, Hornblende, Hypersthene, Magnetite, Pyroxene

5.2.2 Compound Content

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

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

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

Burial Metamorphism, Impact Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

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

6 Properties

6.1 Physical Properties

6.1.1 Hardness

1 7

1.3.2 Grain Size

Coarse Grained

1.3.3 Fracture

Conchoidal

Uneven

1.3.4 Streak

Black

White, Greenish White or Grey

1.3.5 Porosity

Highly Porous

Less Porous

1.3.6 Luster

Not Available

Dull to Vitreous to Submetallic

1.3.7 Compressive Strength

225.00 N/mm²NA

0.15 450

1.3.8 Cleavage

Not Available

Irregular

1.3.9 Toughness

1.6

Not Available

1.3.10 Specific Gravity

2.86-2.873.2-3.5

0 8.4

1.3.11 Transparency

Opaque

1.3.12 Density

2.7-3.3 g/cm³3.1-3.6 g/cm³

0 1400

1.4 Thermal Properties

1.4.1 Specific Heat Capacity

NANA

0.14 3.2

1.4.2 Resistance

Impact Resistant, Pressure Resistant, Wear Resistant

2 Reserves

2.1 Deposits in Eastern Continents

2.1.1 Asia

India, Russia

2.1.2 Africa

South Africa

2.1.3 Europe

Germany, Greece, Italy, Scotland, Turkey

2.1.4 Others

Greenland

2.2 Deposits in Western Continents

2.2.1 North America

Canada, USA

2.2.2 South America

Brazil, Colombia, Venezuela

2.3 Deposits in Oceania Continent

2.3.1 Australia

New Zealand, Queensland

All about Troctolite and Websterite Properties

Know all about Troctolite and Websterite properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite and Websterite belong to Igneous Rocks.Texture of Troctolite is Phaneritic whereas that of Websterite is Clastic, Granular, Phaneritic, Porphyritic. Troctolite appears Veined and Shiny and Websterite appears Layered, Banded, Veined and Shiny. The luster of Troctolite is not available while that of Websterite is dull to vitreous to submetallic. Troctolite is available in dark grey to black colors whereas Websterite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors. The commercial uses of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Websterite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.