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Flint and Amphibolite


Amphibolite and Flint


Definition

Definition
Flint is a hard type of sedimentary rock that produces a small piece of burning material when hit by steel   
Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase   

History
  
  

Discoverer
Unknown   
Alexandre Brongniart   

Etymology
From Old English flint - a type of rock mainly known for high hardness and for giving off sparks when struck   
From Amphibole + -ite   

Class
Sedimentary Rocks   
Metamorphic Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Banded, Rough   
Banded, Foliated, Massive   

Color
Black, Brown, Green, Grey, Red, White   
Black, Brown, Green, Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
Yes   
No   

Acid Resistant
No   
Yes   

Appearance
Glassy or Pearly   
Foliated   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Homes, Interior Decoration   
Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Kitchens   

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Arrowheads, Cutting Tool, Spear Points   
As Dimension Stone, Building houses or walls, Cobblestones, Construction Aggregate, for Road Aggregate, Landscaping, Production of Glass and Ceramics, Roadstone   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone, In fire-starting tools, Manufacture of tools, Metallurgical Flux, Jewelry, To ignite fire, Used in flintlock firearms   
Cemetery Markers, Commemorative Tablets, Creating Artwork   

Types

Types
Not Available   
Hornblendite   

Features
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate   
Clasts are smooth to touch, Matrix variable, Surfaces are often shiny   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

Sculpture
Not Yet Used   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Not Used   
Not Used   

Petroglyphs
Not Used   
Not Used   

Figurines
Not Yet Used   
Used   

Fossils
Present   
Absent   

Formation

Formation
Flint is formed by the decomposition and compaction of various organisms such as sponges and diatoms under the water.   
Amphibolite is a coarse-grained metamorphic rock which forms by metamorphism of mafic igneous rocks like basalt and gabbro or from the metamorphism of clay-rich sedimentary rocks like marl or graywacke.   

Composition
  
  

Mineral Content
Silicon   
Amphibole, Andalusite, Biotite, Calcite, Epidote, Garnet, Hornblade, Kyanite, Magnetite, Olivine, Plagioclase, Pyroxene, Staurolite, Wollastonite   

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

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

Weathering
No   
Yes   

Types of Weathering
Not Applicable   
Chemical Weathering, Mechanical Weathering   

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
7   
6-7   

Grain Size
Very fine-grained   
Medium to Coarse Grained   

Fracture
Conchoidal   
Irregular to Conchoidal   

Streak
White   
White to Grey   

Porosity
Highly Porous   
Less Porous   

Luster
Vitreous   
Vitreous to Dull   

Compressive Strength
450.00 N/mm2   
1
Not Available   

Cleavage
Non-Existent   
Irregular   

Toughness
1.5   
2.3   

Specific Gravity
2.5-2.8   
2.5   

Transparency
Translucent to Opaque   
Opaque   

Density
2.7-2.71 g/cm3   
2.85-3.07 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.74 kJ/Kg K   
19
Not Available   

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Azerbaijan, China, Russia   
Russia, Turkey   

Africa
Not Yet Found   
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda   

Europe
Austria, Belgium, Cyprus, Denmark, France, Germany, Italy, Malta, Netherlands, Poland, Portugal, Romania, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom   
Germany, Greece, Iceland, Norway, Poland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Bolivia   
Brazil   

Deposits in Oceania Continent
  
  

Australia
New Zealand, South Australia   
South Australia, Western Australia   

Summary >>
<< Reserves

All about Flint and Amphibolite Properties

Know all about Flint and Amphibolite properties here. All properties of rocks are important as they define the type of rock and its application. Flint belongs to Sedimentary Rocks while Amphibolite belongs to Metamorphic Rocks.Texture of Flint is Banded, Rough whereas that of Amphibolite is Banded, Foliated, Massive. Flint appears Glassy or Pearly and Amphibolite appears Foliated. The luster of Flint is vitreous while that of Amphibolite is vitreous to dull. Flint and Amphibolite are available in black, brown, green, grey, red, white colors. The commercial uses of Flint are creating artwork, gemstone, in fire-starting tools, manufacture of tools, metallurgical flux, jewelry, to ignite fire, used in flintlock firearms and that of Amphibolite are cemetery markers, commemorative tablets, creating artwork.

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