Syenite and Theralite

Syenite

Theralite

Definition

Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals

Theralite is a plutonic hylocrystalline igneous rock consisting of augite, olivine, calcic plagioclase and nepheline

History

Discoverer

Unknown

Etymology

From French syénite, from Latin Syenites (lapis ) (stone) of Syene

From Greek to pursue

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Earthy

Phaneritic

Color

Brown, Buff, Cream, Green, Grey, Pink, White

Dark Grey to Black

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Yes

Wind Resistant

Yes

Acid Resistant

Yes

Appearance

Banded and Foilated

Veined and Shiny

Uses

Architecture

Interior Uses

Flooring, Homes, Hotels, Interior Decoration

Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

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

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

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

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

Types

Shonkinite

Teschenite and Essexite

Features

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

Smooth to touch

Archaeological Significance

Monuments

Used

Famous Monuments

Data Not Available

Sculpture

Used

Famous Sculptures

Data Not Available

Pictographs

Used

Not Used

Petroglyphs

Used

Not Used

Figurines

Used

Fossils

Absent

Formation

Syenites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.

Theralite 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.

Composition

Mineral Content

Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz

Augite, Olivine, Plagioclase, Pyroxene

Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

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

Transformation

Metamorphism

Yes

Types of Metamorphism

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

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

Weathering

Yes

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

Erosion

Yes

Types of Erosion

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

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

Properties

Physical Properties

Hardness

5.5-6

Grain Size

Medium to Fine Coarse Grained

Fine Grained

Fracture

Not Available

Uneven, Splintery or Conchoidal

Streak

White

Porosity

Less Porous

Highly Porous

Luster

Subvitreous to Dull

Waxy and Dull

Compressive Strength

150.00 N/mm²

Not Available

Cleavage

Perfect

Non-Existent

Toughness

Not Available

1.5

Specific Gravity

2.6-2.7

2.5-2.8

Transparency

Opaque

Translucent to Opaque

Density

2.6-2.8 g/cm³

2.7 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

0.74 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant, Wear Resistant

Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

India, Russia

Africa

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

South Africa

Europe

Bulgaria, England, Germany, Norway, Romania, Switzerland

Germany, Greece, Italy, Scotland, Turkey

Others

Not Yet Found

Greenland, Mid-Atlantic Ridge

Deposits in Western Continents

North America

USA

Canada, USA

South America

Brazil, Chile

Bolivia, Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

New Zealand, Queensland, South Australia, Western Australia

New Zealand, Queensland

Summary >>

<< Reserves

All about Syenite and Theralite Properties

Know all about Syenite and Theralite properties here. All properties of rocks are important as they define the type of rock and its application. Syenite and Theralite belong to Igneous Rocks.Texture of Syenite is Earthy whereas that of Theralite is Phaneritic. Syenite appears Banded and Foilated and Theralite appears Veined and Shiny. The luster of Syenite is subvitreous to dull while that of Theralite is waxy and dull. Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Theralite is available in dark grey to black colors. The commercial uses of Syenite are cemetery markers, creating artwork and that of Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.