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Hawaiite and Kenyte


Kenyte and Hawaiite


Definition

Definition
Hawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite   
Kenyte is a variety of porphyritic phonolite or trachyte rock with rhomb shaped phenocrysts of anorthoclase with variable olivine and augite in a glassy matrix   

History
  
  

Origin
Hawaii Islands   
Mount Kenya   

Discoverer
Joseph Iddings   
J. W. Gregory   

Etymology
From Hawaii Islands   
From the mountain ranges- Mount Kenya and is named by J. W. Gregory in 1900   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular   
Glassy, Granular   

Color
Black, Brown, Light to Dark Grey   
Brown, Buff, Cream, Green, Grey, Pink, White   

Maintenance
Less   
More   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
No   

Wind Resistant
Yes   
No   

Acid Resistant
No   
No   

Appearance
Dull and Soft   
Banded and Foilated   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone   
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

Commercial Uses
Creating Artwork, Sea Defence   
Cemetery Markers, Creating Artwork   

Types

Types
Not Available   
Not Available   

Features
Has High structural resistance against erosion and climate, Very fine grained rock   
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Used   
Used   

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

Sculpture
Not Yet Used   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Not Yet Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Hawaiite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes and reach the Earth's surface.   
Kenyte is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.   

Composition
  
  

Mineral Content
Olivine, Plagioclase, Pyroxene   
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite   

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

Transformation
  
  

Metamorphism
Yes   
Yes   

Types of Metamorphism
Impact Metamorphism   
Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering   
Biological Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Chemical Erosion, Coastal Erosion   

Properties

Physical Properties
  
  

Hardness
6   
5.5-6   

Grain Size
Not Applicable   
Fine Grained   

Fracture
Conchoidal   
Conchoidal to Uneven   

Streak
Not Available   
White, Greenish White or Grey   

Porosity
Less Porous   
Highly Porous   

Luster
Not Available   
Greasy to Dull   

Compressive Strength
37.40 N/mm2   
28
150.00 N/mm2   
14

Cleavage
Not Applicable   
Poor   

Toughness
Not Available   
Not Available   

Specific Gravity
Not Available   
2.6   

Transparency
Opaque   
Translucent to Opaque   

Density
Not Available   
2.6 g/cm3   

Thermal Properties
  
  

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Russia   
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam   

Africa
South Africa   
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa   

Europe
Iceland   
Andorra, Finland, France, Germany, Great Britain, Italy, Norway, Portugal, Spain, Sweden   

Others
Hawaii Islands   
Greenland   

Deposits in Western Continents
  
  

North America
Canada, USA   
Canada, USA   

South America
Brazil   
Brazil, Chile, Colombia, Uruguay, Venezuela   

Deposits in Oceania Continent
  
  

Australia
Not Yet Found   
New Zealand, Queensland, South Australia, Tasmania, Western Australia   

Summary >>
<< Reserves

All about Hawaiite and Kenyte Properties

Know all about Hawaiite and Kenyte properties here. All properties of rocks are important as they define the type of rock and its application. Hawaiite and Kenyte belong to Igneous Rocks.Texture of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Kenyte is Glassy, Granular. Hawaiite appears Dull and Soft and Kenyte appears Banded and Foilated. The luster of Hawaiite is not available while that of Kenyte is greasy to dull. Hawaiite is available in black, brown, light to dark grey colors whereas Kenyte is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Hawaiite are creating artwork, sea defence and that of Kenyte are cemetery markers, creating artwork.

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