Adakite

Jaspillite

Adakite and Jaspillite

Adakite

Jaspillite

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1 Definition

1.1 Definition

Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs

Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks

1.2 History

1.2.1 Origin

Adak, Aleutian Islands

Western Australia, Minnesota

1.2.2 Discoverer

Defant and Drummond

Unknown

1.3 Etymology

From Adak, Aleutian Islands

From Jaspilite (Mineral), a compact siliceous rock which resembles jasper

1.4 Class

Igneous Rocks

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Volcanic

Not Applicable

1.6 Other Categories

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Porphyritic

Banded, Trellis

2.2 Color

Black, Brown, Light to Dark Grey

Red, Reddish Brown

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Dull and Soft

Banded and Glassy

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

Decorative Aggregates, Interior Decoration

3.1.2 Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

As Facing Stone, Garden Decoration, Paving Stone

3.1.3 Other Architectural Uses

Whetstones

Curbing

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Monuments, Sculpture, Small Figurines

Artifacts, Jewellery, Monuments

3.4 Other Uses

3.4.1 Commercial Uses

Commemorative Tablets, Pottery, Used in aquariums

Creating Artwork, Jewelry

4 Types

4.1 Types

Not Available

Algoma-type , Lake Superior-type and Superior-type

4.2 Features

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

Is one of the oldest rock

4.3 Archaeological Significance

4.3.1 Monuments

Used

4.3.2 Famous Monuments

Data Not Available

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

Not Applicable

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Absent

Present

5 Formation

5.1 Formation

Adakite rocks are formed when the hydrous fluids are released from minerals that break down in metamorphosed basalt, and rise into the mantle they initiate partial melting.

Jaspillite is a type of sedimentary rock which is formed by the compaction and sedimentation of pieces of broken or weathered rocks and minerals.

5.2 Composition

5.2.1 Mineral Content

Olivine, Plagioclase, Pyroxene

Coesite, Quartz, Sand

5.2.2 Compound Content

Aluminium Oxide, MgO, Silicon Dioxide

Fe, Iron(III) Oxide, Silicon Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Coastal Erosion, Sea Erosion, Water Erosion

Chemical Erosion, Coastal Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3-43

1 7

6.1.2 Grain Size

Fine to Medium Grained

Large and Coarse Grained

6.1.3 Fracture

Conchoidal

6.1.4 Streak

Bluish Black

White

6.1.5 Porosity

Less Porous

Very Less Porous

6.1.6 Luster

Grainy, Pearly and Vitreous

Earthy

6.1.7 Compressive Strength

NA230.00 N/mm²

0.15 450

6.1.8 Cleavage

Not Available

Imperfect

6.1.9 Toughness

Not Available

6.1.10 Specific Gravity

Not Available5.0-5.3

0 8.4

6.1.11 Transparency

Opaque

Translucent to Opaque

6.1.12 Density

Not Available0-5.7 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

NA3.20 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Russia

Russia

7.1.2 Africa

Ethiopia, Somalia, South Africa

Not Yet Found

7.1.3 Europe

Iceland

Ukraine

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

7.2.2 South America

Brazil

7.3 Deposits in Oceania Continent

7.3.1 Australia

Not Yet Found

Western Australia

All about Adakite and Jaspillite Properties

Know all about Adakite and Jaspillite properties here. All properties of rocks are important as they define the type of rock and its application. Adakite belongs to Igneous Rocks while Jaspillite belongs to Sedimentary Rocks.Texture of Adakite is Porphyritic whereas that of Jaspillite is Banded, Trellis. Adakite appears Dull and Soft and Jaspillite appears Banded and Glassy. The luster of Adakite is grainy, pearly and vitreous while that of Jaspillite is earthy. Adakite is available in black, brown, light to dark grey colors whereas Jaspillite is available in red, reddish brown colors. The commercial uses of Adakite are commemorative tablets, pottery, used in aquariums and that of Jaspillite are creating artwork, jewelry.