Adakite and Blue Granite

Adakite

Blue Granite

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

Blue Granite is an igneous rock and a variety of Larvikite, notable for the presence of thumbnail-sized blue crystals of feldspar

History

Origin

Adak, Aleutian Islands

Unknown

Discoverer

Defant and Drummond

Unknown

Etymology

From Adak, Aleutian Islands

From the color of rock, Blue

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Porphyritic

Phaneritic

Color

Black, Brown, Light to Dark Grey

Black, Brown, Light to Dark Grey, White

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Yes

Wind Resistant

Yes

Acid Resistant

Yes

Appearance

Dull and Soft

Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

Decorative Aggregates, Floor Tiles, Flooring, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

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

Other Architectural Uses

Whetstones

Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

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

Medical Industry

Not Yet Used

Antiquity Uses

Monuments, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Commemorative Tablets, Pottery, Used in aquariums

Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling

Types

Not Available

Features

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

Available in lots of colors, Is one of the oldest rock

Archaeological Significance

Monuments

Used

Famous Monuments

Data Not Available

Sculpture

Used

Famous Sculptures

Data Not Available

Pictographs

Used

Not Used

Petroglyphs

Used

Not Used

Figurines

Used

Fossils

Absent

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.

Blue Granite is an igneous rock which is a variety of Larvikite and is known mainly for the presence of thumbnail-sized crystals of feldspar.

Composition

Mineral Content

Olivine, Plagioclase, Pyroxene

Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon

Compound Content

Aluminium Oxide, MgO, Silicon Dioxide

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Yes

Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Weathering

Yes

Types of Weathering

Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering

Erosion

Yes

Types of Erosion

Coastal Erosion, Sea Erosion, Water Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

Properties

Physical Properties

Hardness

3-4

6-7

Grain Size

Fine to Medium Grained

Medium to Fine Coarse Grained

Fracture

Conchoidal

Not Available

Streak

Bluish Black

White

Porosity

Less Porous

Luster

Grainy, Pearly and Vitreous

Subvitreous to Dull

Compressive Strength

Not Available

175.00 N/mm²

Cleavage

Not Available

Toughness

Not Available

Specific Gravity

Not Available

2.8-3

Transparency

Opaque

Density

Not Available

2.9-2.91 g/cm³

Thermal Properties

Specific Heat Capacity

Not Available

0.79 kJ/Kg K

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

Not Yet Found

Africa

Ethiopia, Somalia, South Africa

Not Yet Found

Europe

Iceland

Bulgaria, England, Germany, Norway, Romania, Switzerland

Others

Not Yet Found

Deposits in Western Continents

North America

Canada, USA

USA

South America

Brazil

Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru

Deposits in Oceania Continent

Australia

Not Yet Found

New South Wales, New Zealand, Queensland, South Australia, Western Australia

Summary >>

<< Reserves

All about Adakite and Blue Granite Properties

Know all about Adakite and Blue Granite properties here. All properties of rocks are important as they define the type of rock and its application. Adakite and Blue Granite belong to Igneous Rocks.Texture of Adakite is Porphyritic whereas that of Blue Granite is Phaneritic. Adakite appears Dull and Soft and Blue Granite appears Shiny. The luster of Adakite is grainy, pearly and vitreous while that of Blue Granite is subvitreous to dull. Adakite is available in black, brown, light to dark grey colors whereas Blue Granite is available in black, brown, light to dark grey, white colors. The commercial uses of Adakite are commemorative tablets, pottery, used in aquariums and that of Blue Granite are cemetery markers, commemorative tablets, creating artwork, curling.