Nepheline Syenite

Enderbite

Nepheline Syenite and Enderbite

Nepheline Syenite

Enderbite

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Definition

Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz

Enderbite rock is an igneous rock which belongs to the Charnockite rock series

History

Origin

Enderby Land, Antarctica

Discoverer

Unknown

Etymology

From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China

From its occurrence in Enderby Land, Antarctica

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Granular

Color

Brown, Buff, Cream, Green, Grey, Pink, White

Black, Grey, Orange, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Banded and Foilated

Veined or Pebbled

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Flooring, 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, Paving Stone

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

Other Architectural Uses

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

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

Curling, Gemstone, Laboratory bench tops, Tombstones

Types

Borolanite and Litchfieldite

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

Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

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

Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.

Composition

Mineral Content

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

Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz

Compound Content

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

Contact Metamorphism, Impact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion

Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5.5-66-7

1 7

👆🏻

Grain Size

Fine Grained

Coarse Grained

Fracture

Conchoidal to Uneven

Streak

White

Porosity

Less Porous

Very Less Porous

Luster

Greasy to Dull

Compressive Strength

150.00 N/mm²140.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

2.6-9999

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.6 g/cm³2.6 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.71 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Wear Resistant

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

India

Africa

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

Europe

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

Others

Greenland

Antarctica

Deposits in Western Continents

North America

Canada, USA

USA

South America

Brazil, Chile, Colombia, Uruguay, Venezuela

Deposits in Oceania Continent

Australia

New Zealand, Queensland, South Australia, Tasmania, Western Australia

All about Nepheline Syenite and Enderbite Properties

Know all about Nepheline Syenite and Enderbite properties here. All properties of rocks are important as they define the type of rock and its application. Nepheline Syenite and Enderbite belong to Igneous Rocks.Texture of Nepheline Syenite is Granular whereas that of Enderbite is Granular. Nepheline Syenite appears Banded and Foilated and Enderbite appears Veined or Pebbled. The luster of Nepheline Syenite is greasy to dull while that of Enderbite is . Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Enderbite is available in black, grey, orange, pink, white colors. The commercial uses of Nepheline Syenite are cemetery markers, creating artwork and that of Enderbite are curling, gemstone, laboratory bench tops, tombstones.