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Nepheline Syenite
Nepheline Syenite

Hawaiite
Hawaiite



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Nepheline Syenite
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Hawaiite

Nepheline Syenite vs Hawaiite

Definition

Definition

Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz
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 origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China
From Hawaii Islands

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

Plutonic
Volcanic

Other Categories

Fine Grained Rock, Opaque Rock
Opaque Rock

Texture

Texture

Granular
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Banded and Foilated
Dull and Soft

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

Medical Industry

Not Available
Not Available

Antiquity Uses

Artifacts, Monuments, Sculpture
Artifacts

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork
Creating Artwork, Sea Defence

Types

Types

Borolanite and Litchfieldite
Not Available

Features

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

Archaeological Significance

Monuments

Used
Used

Famous Monuments

Not Available
Easter Island in the Polynesian Triangle, Pacific Ocean

Sculpture

Used
Not Yet Used

Famous Sculptures

Not Available
Not Applicable

Pictographs

Used
Used

Petroglyphs

Used
Used

Figurines

Used
Not Yet Used

Fossils

Absent
Absent

Formation

Formation

Nepheline Syenites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.
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

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

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

Types of Metamorphism

Burial Metamorphism, Impact Metamorphism
Impact Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering
Biological Weathering

Erosion

Types of Erosion

Chemical Erosion
Not Applicable

Properties

Physical Properties

Hardness

5.5-66
1 7
👆🏻

Grain Size

Fine Grained
Not Applicable

Fracture

Conchoidal to Uneven
Conchoidal

Streak

White
Not Available

Porosity

Less Porous
Less Porous

Luster

Greasy to Dull
Not Available

Compressive Strength

150.00 N/mm237.40 N/mm2
0.15 450
👆🏻

Cleavage

Not Available
Not Applicable

Toughness

Not Available
Not Available

Specific Gravity

2.6Not Available
0 8.4
👆🏻

Transparency

Translucent to Opaque
Opaque

Density

2.6 g/cm3Not Available
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

NANA
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

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

Africa

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

Europe

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

Others

Greenland
Hawaii Islands

Deposits in Western Continents

North America

Canada, USA
Canada, USA

South America

Brazil, Chile, Colombia, Uruguay, Venezuela
Brazil

Deposits in Oceania Continent

Australia

New Zealand, Queensland, South Australia, Tasmania, Western Australia
Not Available

Nepheline Syenite vs Hawaiite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Nepheline Syenite and Hawaiite Reserves. Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Hawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Nepheline Syenite vs Hawaiite information and Nepheline Syenite vs Hawaiite characteristics in the upcoming sections.

Nepheline Syenite vs Hawaiite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Nepheline Syenite vs Hawaiite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Nepheline Syenite and Properties of Hawaiite. Learn more about Nepheline Syenite vs Hawaiite in the next section. The interior uses of Nepheline Syenite include Countertops, Decorative aggregates, Flooring, Homes and Interior decoration whereas the interior uses of Hawaiite include Decorative aggregates, Floor tiles, Flooring, Homes, Hotels, Interior decoration and Kitchens. Due to some exceptional properties of Nepheline Syenite and Hawaiite, they have various applications in construction industry. The uses of Nepheline Syenite in construction industry include 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 and that of Hawaiite include As dimension stone, Cobblestones, Rail track ballast, Roadstone.

More about Nepheline Syenite and Hawaiite

Here you can know more about Nepheline Syenite and Hawaiite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Nepheline Syenite and Hawaiite consists of mineral content and compound content. The mineral content of Nepheline Syenite includes Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite and mineral content of Hawaiite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Nepheline Syenite vs Hawaiite, the texture, color and appearance plays an important role in determining the type of rock. Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas, Hawaiite is available in black, brown, light to dark grey colors. Appearance of Nepheline Syenite is Banded and Foilated and that of Hawaiite is Dull and Soft. Properties of rock is another aspect for Nepheline Syenite vs Hawaiite. The hardness of Nepheline Syenite is 5.5-6 and that of Hawaiite is 6. The types of Nepheline Syenite are Borolanite and Litchfieldite whereas types of Hawaiite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Nepheline Syenite is white while that of Hawaiite is not available. The specific heat capacity of Nepheline Syenite is Not Available and that of Hawaiite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Nepheline Syenite is heat resistant, impact resistant, wear resistant whereas Hawaiite is heat resistant, pressure resistant, wear resistant.