Trachyte

Diorite

Trachyte and Diorite

Trachyte

Diorite

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Definition

Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar

Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene

History

Origin

Discoverer

Alexandre Brongniart and René Just Haüy

Unknown

Etymology

From Greek trakhus rough’ or trakhutēs roughness

From early 19th century coined in French, formed irregularly from Greek diorizein distinguish

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Aphanitic to Porphyritic

Phaneritic

Color

Black, Brown, Dark Greenish - Grey, Green, Grey, Light to Dark Grey, White

Black, Brown, Light to Dark Grey, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Banded

Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, 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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

Creating Artwork, Curling

Types

Felsic volcanic rock

Plagioclase Diorite and Quartz Diorite

Features

Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable

Typically speckled black and white.

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Trachyte is an igneous volcanic rock with an aphanitic to porphyritic texture. It is the volcanic equivalent of syenite rock and forms as a result of magmatic differentiation.

Diorite is a coarse-grained intrusive igneous rock which contains large interlocking and randomly oriented crystals and forms when molten lava does not reach the Earth’s surface and cools down in the Earth’s crust.

Composition

Mineral Content

Augite, Biotite, Feldspar, Hornblade, Plagioclase, Quartz

Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon

Compound Content

Potassium Oxide, Sodium Oxide, Silicon Dioxide

Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of 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, Water Erosion

Properties

Physical Properties

Hardness

66-7

1 7

👆🏻

Grain Size

Fine Grained

Medium to Coarse Grained

Fracture

Streak

White

Bluish Black

Porosity

Less Porous

Very Less Porous

Luster

Metallic

Shiny

Compressive Strength

150.00 N/mm²225.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.1

Specific Gravity

2.72.8-3

0 8.4

👆🏻

Transparency

Opaque

Density

2.43-2.45 g/cm³2.8-3 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Wear Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Africa

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

Egypt

Europe

Bulgaria, England, Germany, Norway, Romania, Switzerland

Finland, Germany, Italy, Romania, Sweden, Turkey, United Kingdom

Others

Deposits in Western Continents

North America

USA

South America

Brazil, Chile

Argentina, Bolivia, Chile, Colombia, Ecuador, Peru

Deposits in Oceania Continent

Australia

New Zealand, Queensland, South Australia, Western Australia

New Zealand, Western Australia

All about Trachyte and Diorite Properties

Know all about Trachyte and Diorite properties here. All properties of rocks are important as they define the type of rock and its application. Trachyte and Diorite belong to Igneous Rocks.Texture of Trachyte is Aphanitic to Porphyritic whereas that of Diorite is Phaneritic. Trachyte appears Banded and Diorite appears Shiny. The luster of Trachyte is metallic while that of Diorite is shiny. Trachyte and Diorite are available in black, brown, dark greenish - grey, green, grey, light to dark grey, white colors. The commercial uses of Trachyte are cemetery markers, creating artwork and that of Diorite are creating artwork, curling.