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Blue Granite and Scoria


Scoria and Blue Granite


Definition

Definition
Blue Granite is an igneous rock and a variety of Larvikite, notable for the presence of thumbnail-sized blue crystals of feldspar   
Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities   

History
  
  

Discoverer
Unknown   
Unknown   

Etymology
From the color of rock, Blue   
From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Volcanic   
Volcanic   

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

Texture

Texture
Phaneritic   
Vesicular   

Color
Black, Brown, Light to Dark Grey, White   
Black, Brown, Dark Grey to Black, Red   

Maintenance
Less   
More   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
No   

Wind Resistant
Yes   
No   

Acid Resistant
No   
No   

Appearance
Shiny   
Glassy and Vesicular   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Floor Tiles, Flooring, Interior Decoration   
Decorative Aggregates, Interior Decoration   

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

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

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

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

Types

Types
Not Available   
Not Available   

Features
Available in lots of colors, Is one of the oldest rock   
Available in Lots of Colors and Patterns, Generally rough to touch, Surfaces are often shiny   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Not Used   
Used   

Petroglyphs
Not Used   
Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Blue Granite is an igneous rock which is a variety of Larvikite and is known mainly for the presence of thumbnail-sized crystals of feldspar.   
Scoria forms when magma containing huge amount of dissolved gas flows from a volcano during an eruption.   

Composition
  
  

Mineral Content
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon   
Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica   

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

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion   
Chemical Erosion, Coastal Erosion, Glacier Erosion   

Properties

Physical Properties
  
  

Hardness
6-7   
5-6   

Grain Size
Medium to Fine Coarse Grained   
Fine Grained   

Fracture
Not Available   
Conchoidal   

Streak
White   
White   

Porosity
Less Porous   
Highly Porous   

Luster
Subvitreous to Dull   
Subvitreous to Dull   

Compressive Strength
175.00 N/mm2   
13
Not Available   

Cleavage
Not Available   
Perfect   

Toughness
Not Available   
2.1   

Specific Gravity
2.8-3   
Not Available   

Transparency
Opaque   
Opaque   

Density
2.9-2.91 g/cm3   
Not Available   

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K   
16
Not Available   

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Not Yet Found   
Afghanistan, Indonesia, Japan, Russia   

Africa
Not Yet Found   
Ethiopia, Kenya, Tanzania   

Europe
Bulgaria, England, Germany, Norway, Romania, Switzerland   
Greece, Hungary, Iceland, Italy, Turkey   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

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

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

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Blue Granite and Scoria Properties

Know all about Blue Granite and Scoria properties here. All properties of rocks are important as they define the type of rock and its application. Blue Granite and Scoria belong to Igneous Rocks.Texture of Blue Granite is Phaneritic whereas that of Scoria is Vesicular. Blue Granite appears Shiny and Scoria appears Glassy and Vesicular. The luster of Blue Granite and Scoria is subvitreous to dull. Blue Granite is available in black, brown, light to dark grey, white colors whereas Scoria is available in black, brown, dark grey to black, red colors. The commercial uses of Blue Granite are cemetery markers, commemorative tablets, creating artwork, curling and that of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills.

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