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Flint and Hawaiite


Hawaiite and Flint


Definition

Definition
Flint is a hard type of sedimentary rock that produces a small piece of burning material when hit by steel   
Hawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite   

History
  
  

Origin
Unknown   
Hawaii Islands   

Discoverer
Unknown   
Joseph Iddings   

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

Class
Sedimentary Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Not Applicable   
Volcanic   

Other Categories
Fine Grained Rock, Opaque Rock   
Opaque Rock   

Texture

Texture
Banded, Rough   
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular   

Color
Black, Brown, Green, Grey, Red, White   
Black, Brown, Light to Dark Grey   

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   
Dull and Soft   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Arrowheads, Cutting Tool, Spear Points   
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone   

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   
Creating Artwork, Sea Defence   

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   
Has High structural resistance against erosion and climate, Very fine grained rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Easter Island in the Polynesian Triangle, Pacific Ocean   

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   

Fossils
Present   
Absent   

Formation

Formation
Flint is formed by the decomposition and compaction of various organisms such as sponges and diatoms under the water.   
Hawaiite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes and reach the Earth's surface.   

Composition
  
  

Mineral Content
Silicon   
Olivine, Plagioclase, Pyroxene   

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   
Impact Metamorphism   

Weathering
No   
Yes   

Types of Weathering
Not Applicable   
Biological Weathering   

Erosion
Yes   
No   

Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion   
Not Applicable   

Properties

Physical Properties
  
  

Hardness
7   
6   

Grain Size
Very fine-grained   
Not Applicable   

Fracture
Conchoidal   
Conchoidal   

Streak
White   
Not Available   

Porosity
Highly Porous   
Less Porous   

Luster
Vitreous   
Not Available   

Compressive Strength
450.00 N/mm2   
1
37.40 N/mm2   
28

Cleavage
Non-Existent   
Not Applicable   

Toughness
1.5   
Not Available   

Specific Gravity
2.5-2.8   
Not Available   

Transparency
Translucent to Opaque   
Opaque   

Density
2.7-2.71 g/cm3   
Not Available   

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   
India, Russia   

Africa
Not Yet Found   
South Africa   

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

Others
Not Yet Found   
Hawaii Islands   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Bolivia   
Brazil   

Deposits in Oceania Continent
  
  

Australia
New Zealand, South Australia   
Not Yet Found   

Summary >>
<< Reserves

All about Flint and Hawaiite Properties

Know all about Flint and Hawaiite properties here. All properties of rocks are important as they define the type of rock and its application. Flint belongs to Sedimentary Rocks while Hawaiite belongs to Igneous Rocks.Texture of Flint is Banded, Rough whereas that of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Flint appears Glassy or Pearly and Hawaiite appears Dull and Soft. The luster of Flint is vitreous while that of Hawaiite is not available. Flint is available in black, brown, green, grey, red, white colors whereas Hawaiite is available in black, brown, light to dark grey 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 Hawaiite are creating artwork, sea defence.

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