Flint and Taconite
Definition
Definition
Flint is a hard type of sedimentary rock that produces a small piece of burning material when hit by steel
Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica
History
Origin
Unknown
Western Australia, Minnesota
Discoverer
Unknown
Newton Horace Winchell
Etymology
From Old English flint - a type of rock mainly known for high hardness and for giving off sparks when struck
From the name of Taconic Mountains in New England
Class
Sedimentary Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Not Applicable
Not Applicable
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
Texture
Texture
Banded, Rough
Banded, Trellis
Color
Black, Brown, Green, Grey, Red, White
Red, Reddish Brown
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
Yes
Yes
Scratch Resistant
Yes
Yes
Stain Resistant
Yes
No
Wind Resistant
Yes
Yes
Acid Resistant
No
No
Appearance
Glassy or Pearly
Layered, Banded, Veined and Shiny
Uses
Architecture
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Building Stone, Garden Decoration, Paving Stone
Other Architectural Uses
Curbing
Curbing
Industry
Construction Industry
Arrowheads, Cutting Tool, Spear Points
As Dimension Stone, Used for flooring, stair treads, borders and window sills.
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts
Artifacts
Other Uses
Commercial Uses
Creating Artwork, Gemstone, In fire-starting tools, Manufacture of tools, Metallurgical Flux, Jewelry, To ignite fire, Used in flintlock firearms
As a touchstone, Cemetery Markers, Creating Artwork
Types
Types
Not Available
Not Available
Features
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate
Is one of the oldest 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
Present
Formation
Formation
Flint is formed by the decomposition and compaction of various organisms such as sponges and diatoms under the water.
Taconite is a type of sedimentary rock formed when a river carries or transports pieces of broken rock as it flows. When the river reaches a lake or sea, its load of transported rocks settles or deposits at the bottom of sea or lake.
Composition
Mineral Content
Silicon
Hematite, Magnetite, Quartz
Compound Content
Silicon Dioxide
Fe, Iron(III) Oxide, Silicon Dioxide
Transformation
Metamorphism
No
No
Types of Metamorphism
Not Applicable
Not Applicable
Weathering
No
Yes
Types of Weathering
Not Applicable
Biological Weathering, Mechanical Weathering
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
Properties
Physical Properties
Hardness
7
5.5-6
Grain Size
Very fine-grained
Large and Coarse Grained
Fracture
Conchoidal
Uneven, Splintery or Conchoidal
Streak
White
White
Porosity
Highly Porous
Highly Porous
Luster
Vitreous
Earthy
Compressive Strength
450.00 N/mm2
1
Not Available
Cleavage
Non-Existent
Imperfect
Toughness
1.5
1.5
Specific Gravity
2.5-2.8
5-5.3
Transparency
Translucent to Opaque
Translucent to Opaque
Density
2.7-2.71 g/cm3
Not Available
Thermal Properties
Specific Heat Capacity
0.74 kJ/Kg K
19
3.20 kJ/Kg K
1
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Reserves
Deposits in Eastern Continents
Asia
Azerbaijan, China, Russia
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
Africa
Not Yet Found
Kenya, Morocco, South Africa, Tanzania
Europe
Austria, Belgium, Cyprus, Denmark, France, Germany, Italy, Malta, Netherlands, Poland, Portugal, Romania, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
Others
Not Yet Found
Greenland, Mid-Atlantic Ridge
Deposits in Western Continents
North America
USA
Canada, Mexico, USA
South America
Bolivia
Bolivia, Brazil
Deposits in Oceania Continent
Australia
New Zealand, South Australia
New South Wales, Queensland, South Australia, Western Australia
All about Flint and Taconite Properties
Know all about Flint and Taconite properties here. All properties of rocks are important as they define the type of rock and its application. Flint and Taconite belong to Sedimentary Rocks.Texture of Flint is Banded, Rough whereas that of Taconite is Banded, Trellis. Flint appears Glassy or Pearly and Taconite appears Layered, Banded, Veined and Shiny. The luster of Flint is vitreous while that of Taconite is earthy. Flint is available in black, brown, green, grey, red, white colors whereas Taconite is available in red, reddish brown 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 Taconite are as a touchstone, cemetery markers, creating artwork.
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