Definition
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene
  
Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine
  
History
  
  
Origin
Unknown
  
Germany
  
Discoverer
Unknown
  
Unknown
  
Etymology
From early 19th century coined in French, formed irregularly from Greek diorizein distinguish
  
From the name of a town in Harzburg, Germany
  
Class
Igneous Rocks
  
Igneous Rocks
  
Sub-Class
Durable Rock, Hard Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Plutonic
  
Plutonic
  
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
  
Coarse Grained Rock, Opaque Rock
  
Texture
Phaneritic
  
Phaneritic
  
Color
Black, Brown, Light to Dark Grey, White
  
Dark Greenish - Grey
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
No
  
Yes
  
Scratch Resistant
No
  
Yes
  
Stain Resistant
No
  
Yes
  
Wind Resistant
Yes
  
Yes
  
Acid Resistant
No
  
No
  
Appearance
Shiny
  
Rough and Shiny
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Interior Decoration
  
Decorative Aggregates, Homes, Interior Decoration
  
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration
  
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
  
Other Architectural Uses
Curbing
  
Curbing
  
Industry
  
  
Construction Industry
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate
  
As Dimension Stone, Cobblestones
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
  
Artifacts, Monuments, Sculpture, Small Figurines
  
Other Uses
  
  
Commercial Uses
Creating Artwork, Curling
  
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds
  
Types
Not Available
  
Not Available
  
Features
Typically speckled black and white.
  
Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock
  
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
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.
  
Harzburgite 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
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon
  
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene
  
Compound Content
Silicon Dioxide
  
Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide
  
Transformation
  
  
Metamorphism
Yes
  
Yes
  
Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
  
Impact Metamorphism
  
Weathering
Yes
  
Yes
  
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Chemical Weathering, Mechanical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
  
Chemical Erosion, Sea Erosion
  
Physical Properties
  
  
Hardness
6-7
  
5.5-6
  
Grain Size
Medium to Coarse Grained
  
Coarse Grained
  
Fracture
Not Available
  
Irregular
  
Streak
Bluish Black
  
White
  
Porosity
Very Less Porous
  
Less Porous
  
Luster
Shiny
  
Shiny
  
Compressive Strength
225.00 N/mm
2
  
7
Not Available
  
Cleavage
Not Available
  
Imperfect
  
Toughness
2.1
  
2.1
  
Specific Gravity
2.8-3
  
3-3.01
  
Transparency
Opaque
  
Translucent to Opaque
  
Density
2.8-3 g/cm3
  
3.1-3.4 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
Not Available
  
1.25 kJ/Kg K
  
6
Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
  
Heat Resistant, Pressure Resistant, Wear Resistant
  
Deposits in Eastern Continents
  
  
Asia
Not Yet Found
  
Japan, Oman
  
Africa
Egypt
  
South Africa
  
Europe
Finland, Germany, Italy, Romania, Sweden, Turkey, United Kingdom
  
France, Germany, Italy, Venezuela
  
Others
Not Yet Found
  
Hawaii Islands, Mid-Atlantic Ridge
  
Deposits in Western Continents
  
  
North America
USA
  
Canada, USA
  
South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru
  
Not Yet Found
  
Deposits in Oceania Continent
  
  
Australia
New Zealand, Western Australia
  
Not Yet Found
  
Diorite vs Harzburgite 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. Diorite vs Harzburgite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Diorite and Properties of Harzburgite. Learn more about Diorite vs Harzburgite in the next section. The interior uses of Diorite include Decorative aggregates and Interior decoration whereas the interior uses of Harzburgite include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Diorite and Harzburgite, they have various applications in construction industry. The uses of Diorite in construction industry include As dimension stone, Cement manufacture, Cobblestones, Construction aggregate, For road aggregate and that of Harzburgite include As dimension stone, Cobblestones.
More about Diorite and Harzburgite
Here you can know more about Diorite and Harzburgite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Diorite and Harzburgite consists of mineral content and compound content. The mineral content of Diorite includes Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon and mineral content of Harzburgite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Diorite vs Harzburgite, the texture, color and appearance plays an important role in determining the type of rock. Diorite is available in black, brown, light to dark grey, white colors whereas, Harzburgite is available in dark greenish - grey colors. Appearance of Diorite is Shiny and that of Harzburgite is Rough and Shiny. Properties of rock is another aspect for Diorite vs Harzburgite. The hardness of Diorite is 6-7 and that of Harzburgite is 5.5-6. The types of Diorite are Not Available whereas types of Harzburgite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Diorite is bluish black while that of Harzburgite is white. The specific heat capacity of Diorite is Not Available and that of Harzburgite is 1.25 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Diorite is heat resistant, pressure resistant, wear resistant whereas Harzburgite is heat resistant, pressure resistant, wear resistant.