Nephelinite

Suevite

Nephelinite and Suevite

Nephelinite

Suevite

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Definition

Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).

During the impact melted material forming a breccia containing glass and crystal or lithic fragments together form Suevite rock.

History

Origin

Brazil

Canada, Germany

Discoverer

Unknown

Etymology

from French néphéline, from Greek nephelē

No etymologies found

Class

Igneous Rocks

Metamorphic Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Aphanitic

Earthy

Color

Black, Brown, Green, Grey, White

Black, Brown, Green, Grey, Pink

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Skeletal

Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate

As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)

As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Source of Magnesia (MgO)

Types

Peralkaline Nephelinite

Phyllosilicates, Calcite

Features

Host Rock for Lead

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Nephelinite 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.

Suevite is a metamorphic rock consisting partly of melted material, typically forming a breccia containing glass and crystal or lithic fragments, formed during an impact event.

Composition

Mineral Content

Clinopyroxene, Nepheline, Plagioclase

Coesite, Quartz, Stishovite

Compound Content

Ca, CaO, Carbon, Cl, MgO

CaO, Carbon Dioxide, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Contact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6.55.5

1 7

👆🏻

Grain Size

Fine Grained

Coarse Grained

Fracture

Flat

Uneven

Streak

White

Light to dark brown

Porosity

Less Porous

Luster

Vitreous to Metallic

Earthy

Compressive Strength

35.00 N/mm²65.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.7

Specific Gravity

2.4-2.92.86

0 8.4

👆🏻

Transparency

Opaque

Density

2.5-3 g/cm³2.8-2.9 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.88 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

Japan

Africa

Rwanda, Tanzania

Europe

England, France, Germany, Great Britain, Netherlands, Sweden, Switzerland, United Kingdom

Others

Hawaii Islands

Deposits in Western Continents

North America

Canada, USA

South America

Colombia

Deposits in Oceania Continent

Australia

All about Nephelinite and Suevite Properties

Know all about Nephelinite and Suevite properties here. All properties of rocks are important as they define the type of rock and its application. Nephelinite belongs to Igneous Rocks while Suevite belongs to Metamorphic Rocks.Texture of Nephelinite is Aphanitic whereas that of Suevite is Earthy. Nephelinite appears Skeletal and Suevite appears Banded. The luster of Nephelinite is vitreous to metallic while that of Suevite is earthy. Nephelinite is available in black, brown, green, grey, white colors whereas Suevite is available in black, brown, green, grey, pink colors. The commercial uses of Nephelinite are creating artwork, soil conditioner, source of magnesia (mgo) and that of Suevite are as a feed additive for livestock, gemstone, metallurgical flux, source of magnesia (mgo).