Definition
Flint is a hard type of sedimentary rock that produces a small piece of burning material when hit by steel
  
Alkali feldspar granite, also known as red granite, is a felsic igneous rock and a type of granite rich in the mineral potassium feldspar
  
History
  
  
Discoverer
Unknown
  
Unknown
  
Etymology
From Old English flint - a type of rock mainly known for high hardness and for giving off sparks when struck
  
From mineral fledspar which is present in large quantities in this rock
  
Class
Sedimentary Rocks
  
Igneous Rocks
  
Sub-Class
Durable Rock, Hard Rock
  
Durable Rock, Hard Rock
  
Family
  
  
Group
Not Applicable
  
Plutonic
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Coarse Grained Rock, Opaque Rock
  
Texture
Banded, Rough
  
Phaneritic
  
Color
Black, Brown, Green, Grey, Red, White
  
Black, Grey, Orange, Pink, White
  
Maintenance
Less
  
More
  
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
  
Veined or Pebbled
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
  
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads
  
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
  
As Building Stone, As Facing Stone, Bridges, Paving Stone, Near Swimming Pools, Office Buildings, Resorts
  
Other Architectural Uses
Curbing
  
Curbing
  
Industry
  
  
Construction Industry
Arrowheads, Cutting Tool, Spear Points
  
As Dimension Stone
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts
  
Artifacts, Monuments, 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
  
Curling, Gemstone, Laboratory bench tops, Tombstones
  
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, It is One of the Oldest, Strongest and Hardest Rock
  
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
Flint is formed by the decomposition and compaction of various organisms such as sponges and diatoms under the water.
  
Alkali fledspar granite is an intrusive igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks.
  
Composition
  
  
Mineral Content
Silicon
  
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz
  
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
  
Yes
  
Types of Metamorphism
Not Applicable
  
Burial Metamorphism, Contact Metamorphism, Impact Metamorphism
  
Weathering
No
  
Yes
  
Types of Weathering
Not Applicable
  
Chemical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
  
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion
  
Physical Properties
  
  
Hardness
7
  
6-7
  
Grain Size
Very fine-grained
  
Large and Coarse Grained
  
Fracture
Conchoidal
  
Not Available
  
Streak
White
  
White
  
Porosity
Highly Porous
  
Less Porous
  
Luster
Vitreous
  
Dull to Grainy with Sporadic parts Pearly and Vitreous
  
Compressive Strength
450.00 N/mm2
  
1
175.00 N/mm2
  
13
Cleavage
Non-Existent
  
Not Available
  
Toughness
1.5
  
Not Available
  
Specific Gravity
2.5-2.8
  
2.6-2.7
  
Transparency
Translucent to Opaque
  
Opaque
  
Density
2.7-2.71 g/cm3
  
2.6-2.8 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.74 kJ/Kg K
  
19
0.79 kJ/Kg K
  
16
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
  
Heat Resistant, Wear Resistant
  
Deposits in Eastern Continents
  
  
Asia
Azerbaijan, China, Russia
  
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
  
Africa
Not Yet Found
  
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
  
Europe
Austria, Belgium, Cyprus, Denmark, France, Germany, Italy, Malta, Netherlands, Poland, Portugal, Romania, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom
  
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
USA
  
Canada, USA
  
South America
Bolivia
  
Not Yet Found
  
Deposits in Oceania Continent
  
  
Australia
New Zealand, South Australia
  
Not Yet Found
  
All about Flint and Alkali Feldspar Granite Properties
Know all about Flint and Alkali Feldspar Granite properties here. All properties of rocks are important as they define the type of rock and its application. Flint belongs to Sedimentary Rocks while Alkali Feldspar Granite belongs to Igneous Rocks.Texture of Flint is Banded, Rough whereas that of Alkali Feldspar Granite is Phaneritic. Flint appears Glassy or Pearly and Alkali Feldspar Granite appears Veined or Pebbled. The luster of Flint is vitreous while that of Alkali Feldspar Granite is dull to grainy with sporadic parts pearly and vitreous. Flint is available in black, brown, green, grey, red, white colors whereas Alkali Feldspar Granite is available in black, grey, orange, pink, 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 Alkali Feldspar Granite are curling, gemstone, laboratory bench tops, tombstones.