Adakite

Breccia

Adakite and Breccia

Adakite

Breccia

Add ⊕

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

Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material

History

Origin

Adak, Aleutian Islands

England

Discoverer

Defant and Drummond

Unknown

Etymology

From Adak, Aleutian Islands

From Italian, literally gravel, Germanic origin and related to break

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Porphyritic

Brecciated, Clastic

Color

Black, Brown, Light to Dark Grey

Beige, Black, Blue, Brown, Buff, Green, Grey, Orange, Pink, Purple, Red, Rust, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Soft

Layered, Banded, Veined and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

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

Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

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

Other Architectural Uses

Whetstones

Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

As Dimension Stone, Construction Aggregate, Landscaping, Roadstone

Medical Industry

Antiquity Uses

Monuments, Sculpture, Small Figurines

Artifacts, Sculpture

Other Uses

Commercial Uses

Commemorative Tablets, Pottery, Used in aquariums

Creating Artwork, Gemstone, Jewelry

Types

Intermediate volcanic rock

Collapse Breccia, Fault Breccia, Flow Breccia, Pyroclastic Breccia, Igneous Breccia and Impact Breccia

Features

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

Available in Lots of Colors and Patterns, Clasts are smooth to touch

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

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.

Breccia is a clastic sedimentary rock which is composed of broken fragments of minerals or rock which are cemented together by a fine-grained matrix and it forms where broken, angular fragments of rock or mineral debris accumulate.

Composition

Mineral Content

Olivine, Plagioclase, Pyroxene

Calcite, Clay, Feldspar, Phosphates, Quartz, Silica

Compound Content

Aluminium Oxide, MgO, Silicon Dioxide

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Weathering

✔ ✘

Types of Weathering

Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Coastal Erosion, Sea Erosion, Water Erosion

Chemical Erosion

Properties

Physical Properties

Hardness

3-47

1 7

👆🏻

Grain Size

Fine to Medium Grained

Medium to Coarse Grained

Fracture

Conchoidal

Uneven

Streak

Bluish Black

White

Porosity

Less Porous

Luster

Grainy, Pearly and Vitreous

Dull to Pearly

Compressive Strength

200.00 N/mm²180.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

-99992.86-2.87

0 8.4

👆🏻

Transparency

Opaque

Density

-9999 g/cm³0 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan

Africa

Ethiopia, Somalia, South Africa

Namibia, Nigeria, South Africa

Europe

Iceland

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

Barbados, Canada, Mexico, Panama, USA

South America

Brazil

Deposits in Oceania Continent

Australia

New South Wales, New Zealand

All about Adakite and Breccia Properties

Know all about Adakite and Breccia properties here. All properties of rocks are important as they define the type of rock and its application. Adakite belongs to Igneous Rocks while Breccia belongs to Sedimentary Rocks.Texture of Adakite is Porphyritic whereas that of Breccia is Brecciated, Clastic. Adakite appears Dull and Soft and Breccia appears Layered, Banded, Veined and Shiny. The luster of Adakite is grainy, pearly and vitreous while that of Breccia is dull to pearly. Adakite is available in black, brown, light to dark grey colors whereas Breccia is available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, white, yellow colors. The commercial uses of Adakite are commemorative tablets, pottery, used in aquariums and that of Breccia are creating artwork, gemstone, jewelry.