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Scoria vs Gossan


Gossan vs Scoria


Definition

Definition
Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities  
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 late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung  
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
Volcanic  
-  

Other Categories
Fine Grained Rock, Opaque Rock  
Fine Grained Rock, Medium Grained Rock, Opaque Rock  

Texture

Texture
Vesicular  
Rough, Sandy  

Color
Black, Brown, Dark Grey to Black, Red  
Brown, Brown- Black, Gold, Green, Rust  

Maintenance
More  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Glassy and Vesicular  
Dull and Banded  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration  
Countertops, Decorative Aggregates, Interior Decoration  

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, In landscaping and drainage works  
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts  

Other Uses
  
  

Commercial Uses
As a traction material on snow-covered roads, Creating Artwork, High-temperature insulation, In gas barbecue grills  
Cemetery Markers, Commemorative Tablets, Gemstone  

Types

Types
Basaltic Scoria and Andesitic Scoria  
Translocated gossan and Leakage gossan  

Features
Available in Lots of Colors and Patterns, Generally rough to touch, Surfaces are often shiny  
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
Scoria forms when magma containing huge amount of dissolved gas flows from a volcano during an eruption.  
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
Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica  
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon  

Compound Content
Ca, NaCl  
Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur  

Transformation
  
  

Metamorphism
Yes  
No  

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism  
-  

Weathering
Yes  
No  

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering  
-  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion  
Chemical Erosion, Sea Erosion, Wind Erosion  

Properties

Physical Properties
  
  

Hardness
5-6  
4-5  

Grain Size
Fine Grained  
Fine to Medium Grained  

Fracture
Conchoidal  
Conchoidal  

Streak
White  
White to Grey  

Porosity
Highly Porous  
Highly Porous  

Luster
Subvitreous to Dull  
Metallic  

Compressive Strength
70.00 N/mm2  
35
-  

Cleavage
Perfect  
-  

Toughness
2.1  
-  

Specific Gravity
-9999  
2.0  

Transparency
Opaque  
Opaque  

Density
-9999 g/cm3  
-9999 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K  
15
0.24 kJ/Kg K  
31

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Indonesia, Japan, Russia  
China, India, Indonesia, Russia, Singapore, South Korea  

Africa
Ethiopia, Kenya, Tanzania  
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa  

Europe
Greece, Hungary, Iceland, Italy, Turkey  
Albania, France, Germany, Great Britain, United Kingdom  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA  
Canada, USA  

South America
Argentina, Chile, Ecuador, Peru  
Brazil, Colombia, Ecuador  

Deposits in Oceania Continent
  
  

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

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Scoria 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 Scoria and Gossan Reserves. Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. 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 Scoria vs Gossan information and Scoria vs Gossan characteristics in the upcoming sections.

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Scoria 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. Scoria vs Gossan characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Scoria and Properties of Gossan. Learn more about Scoria vs Gossan in the next section. The interior uses of Scoria include Decorative aggregates and Interior decoration whereas the interior uses of Gossan include Countertops, Decorative aggregates and Interior decoration. Due to some exceptional properties of Scoria and Gossan, they have various applications in construction industry. The uses of Scoria in construction industry include Cement manufacture, Construction aggregate, For road aggregate, In landscaping and drainage works and that of Gossan include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate.

More about Scoria and Gossan

Here you can know more about Scoria and Gossan. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Scoria and Gossan consists of mineral content and compound content. The mineral content of Scoria includes Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica 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 Scoria vs Gossan, the texture, color and appearance plays an important role in determining the type of rock. Scoria is available in black, brown, dark grey to black, red colors whereas, Gossan is available in brown, brown- black, gold, green, rust colors. Appearance of Scoria is Glassy and Vesicular and that of Gossan is Dull and Banded. Properties of rock is another aspect for Scoria vs Gossan. The hardness of Scoria is 5-6 and that of Gossan is 4-5. The types of Scoria are Basaltic Scoria and Andesitic Scoria 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 Scoria is white while that of Gossan is white to grey. The specific heat capacity of Scoria is 0.84 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.Scoria is heat resistant, impact resistant, pressure resistant, wear resistant whereas Gossan is heat resistant, impact resistant, pressure resistant.

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