Definition
Flint is a hard type of sedimentary rock that produces a small piece of burning material when hit by steel
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature
Discoverer
Unknown
René Just Haüy
Etymology
From Old English flint - a type of rock mainly known for high hardness and for giving off sparks when struck
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1
Class
Sedimentary Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Group
Not Applicable
Not Applicable
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Banded, Rough
Earthy
Color
Black, Brown, Green, Grey, Red, White
Black, Brown, Colourless, Green, Grey, Pink, White
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Glassy or Pearly
Dull, Banded and Foilated
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
Paving Stone, Garden Decoration
Other Architectural Uses
Curbing
Curbing
Construction Industry
Arrowheads, Cutting Tool, Spear Points
Not Yet Used
Medical Industry
Not Yet Used
In Chemical and Pharmaceutical Industry, Medicines and Cosmetics
Antiquity Uses
Artifacts
Artifacts
Commercial Uses
Creating Artwork, Gemstone, In fire-starting tools, Manufacture of tools, Metallurgical Flux, Jewelry, To ignite fire, Used in flintlock firearms
Creating Artwork, Gemstone
Types
Not Available
Not Available
Features
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate
Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock
Archaeological Significance
Monuments
Not Yet Used
Not Yet Used
Famous Monuments
Not Applicable
Not Applicable
Sculpture
Not Yet Used
Not Yet Used
Famous Sculptures
Not Applicable
Not Applicable
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Not Yet Used
Not Yet Used
Formation
Flint is formed by the decomposition and compaction of various organisms such as sponges and diatoms under the water.
Eclogite forms from high-pressure metamorphism of mafic igneous rocks mainly, basalt or gabbro as it plunges into the mantle in a subduction zone.
Mineral Content
Silicon
Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite
Compound Content
Silicon Dioxide
Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium
Types of Metamorphism
Not Applicable
Not Applicable
Types of Weathering
Not Applicable
Mechanical Weathering
Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
Chemical Erosion, Sea Erosion
Grain Size
Very fine-grained
Fine Grained
Fracture
Conchoidal
Not Available
Porosity
Highly Porous
Less Porous
Luster
Vitreous
Subvitreous to Dull
Compressive Strength
Not Available
Cleavage
Non-Existent
Perfect
Toughness
1.5
Not Available
Specific Gravity
2.5-2.8
2.86-2.87
Transparency
Translucent to Opaque
Opaque
Density
2.7-2.71 g/cm3
3.2-3.6 g/cm3
Specific Heat Capacity
Not Available
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant
Deposits in Eastern Continents
Asia
Azerbaijan, China, Russia
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
Africa
Not Yet Found
Ethiopia, Morocco, South Africa
Europe
Austria, Belgium, Cyprus, Denmark, France, Germany, Italy, Malta, Netherlands, Poland, Portugal, Romania, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom
France, Germany, Italy, Norway, Scotland
Others
Not Yet Found
Greenland
Deposits in Western Continents
North America
USA
Canada, Costa Rica, Panama, USA
South America
Bolivia
Argentina, Brazil, Colombia, Ecuador
Deposits in Oceania Continent
Australia
New Zealand, South Australia
Central Australia, New Zealand, Queensland
Flint vs Eclogite 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. Flint vs Eclogite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Flint and Properties of Eclogite. Learn more about Flint vs Eclogite in the next section. The interior uses of Flint include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Eclogite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Flint and Eclogite, they have various applications in construction industry. The uses of Flint in construction industry include Arrowheads, Cutting tool, Spear points and that of Eclogite include Not yet used.
More about Flint and Eclogite
Here you can know more about Flint and Eclogite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Flint and Eclogite consists of mineral content and compound content. The mineral content of Flint includes Silicon and mineral content of Eclogite includes Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite. You can also check out the list of all Sedimentary Rocks. When we have to compare Flint vs Eclogite, the texture, color and appearance plays an important role in determining the type of rock. Flint is available in black, brown, green, grey, red, white colors whereas, Eclogite is available in black, brown, colourless, green, grey, pink, white colors. Appearance of Flint is Glassy or Pearly and that of Eclogite is Dull, Banded and Foilated. Properties of rock is another aspect for Flint vs Eclogite. The hardness of Flint is 7 and that of Eclogite is 3.5-4. The types of Flint are Not Available whereas types of Eclogite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Flint and Eclogite is white. The specific heat capacity of Flint is 0.74 kJ/Kg K and that of Eclogite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Flint is heat resistant, impact resistant, pressure resistant, wear resistant whereas Eclogite is heat resistant.