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Syenite
Syenite

Gossan
Gossan



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Syenite
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Syenite vs Gossan

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Definition

Definition

Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.

History

Origin

-
Indonesia

Discoverer

Unknown
Cornish Gossen

Etymology

From French syénite, from Latin Syenites (lapis ) (stone) of Syene
From Cornish gossen from gos, blood from Old Cornish guit

Class

Igneous Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

Plutonic
-

Other Categories

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

Texture

Texture

Earthy
Rough, Sandy

Color

Brown, Buff, Cream, Green, Grey, Pink, White
Brown, Brown- Black, Gold, Green, Rust

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Banded and Foilated
Dull and Banded

Uses

Architecture

Interior Uses

Flooring, Homes, Hotels, Interior Decoration
Countertops, Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
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, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

-
-

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines
Artifacts

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork
Cemetery Markers, Commemorative Tablets, Gemstone

Types

Types

Shonkinite
Translocated gossan and Leakage gossan

Features

Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable
Clasts are smooth to touch, Easily splits into thin plates

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Syenites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.
Earth movements can cause rocks to be either deeply buried or squeezed and hence the rocks are heated and put under great pressure.

Composition

Mineral Content

Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon

Compound Content

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

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact 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, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5.5-64-5
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Fine to Medium Grained

Fracture

-
Conchoidal

Streak

White
White to Grey

Porosity

Less Porous
Highly Porous

Luster

Subvitreous to Dull
Metallic

Compressive Strength

150.00 N/mm2-
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

-
-

Specific Gravity

2.6-2.72.0
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.6-2.8 g/cm3-9999 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.24 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
China, India, Indonesia, Russia, Singapore, South Korea

Africa

Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa

Europe

Bulgaria, England, Germany, Norway, Romania, Switzerland
Albania, France, Germany, Great Britain, United Kingdom

Others

-
-

Deposits in Western Continents

North America

USA
Canada, USA

South America

Brazil, Chile
Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

New Zealand, Queensland, South Australia, Western Australia
New South Wales, South Australia, Western Australia

Syenite vs Gossan 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 Syenite and Gossan Reserves. Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals. Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.. 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 Syenite vs Gossan information and Syenite vs Gossan characteristics in the upcoming sections.

Syenite vs Gossan 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. Syenite vs Gossan characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Syenite and Properties of Gossan. Learn more about Syenite vs Gossan in the next section. The interior uses of Syenite include Flooring, Homes, Hotels and Interior decoration whereas the interior uses of Gossan include Countertops, Decorative aggregates and Interior decoration. Due to some exceptional properties of Syenite and Gossan, they have various applications in construction industry. The uses of Syenite in construction industry include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Landscaping, Making natural cement, Manufacture of magnesium and dolomite refractories and that of Gossan include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate.

More about Syenite and Gossan

Here you can know more about Syenite and Gossan. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Syenite and Gossan consists of mineral content and compound content. The mineral content of Syenite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz and mineral content of Gossan includes Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Syenite vs Gossan, the texture, color and appearance plays an important role in determining the type of rock. Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas, Gossan is available in brown, brown- black, gold, green, rust colors. Appearance of Syenite is Banded and Foilated and that of Gossan is Dull and Banded. Properties of rock is another aspect for Syenite vs Gossan. The hardness of Syenite is 5.5-6 and that of Gossan is 4-5. The types of Syenite are Shonkinite whereas types of Gossan are Translocated gossan and Leakage gossan. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Syenite is white while that of Gossan is white to grey. The specific heat capacity of Syenite is 0.92 kJ/Kg K and that of Gossan is 0.24 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Syenite is heat resistant, impact resistant, wear resistant whereas Gossan is heat resistant, impact resistant, pressure resistant.