Granodiorite and Harzburgite

Granodiorite

Harzburgite

Definition

Granodiorite is a coarse-grained intrusive igneous rock containing quartz and plagioclase, and which has composition in between granite and diorite

Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine

History

Origin

Unknown

Germany

Discoverer

Unknown

Etymology

From granite + diorite

From the name of a town in Harzburg, Germany

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Granular, Phaneritic

Phaneritic

Color

Black, Grey, Orange, Pink, White

Dark Greenish - Grey

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Yes

Wind Resistant

Yes

Acid Resistant

Appearance

Veined or Pebbled

Rough and Shiny

Uses

Architecture

Interior Uses

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

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Not Yet Used

Curbing

Industry

Construction Industry

As Dimension Stone

As Dimension Stone, Cobblestones

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Curling, Gemstone, Laboratory bench tops, Tombstones

Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds

Types

Not Available

Features

Available in Lots of Colors and Patterns

Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock

Archaeological Significance

Monuments

Used

Famous Monuments

Data Not Available

Sculpture

Used

Famous Sculptures

Data Not Available

Pictographs

Used

Petroglyphs

Used

Figurines

Used

Fossils

Absent

Formation

Granodiorite is an intrusive igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks.

Harzburgite 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.

Composition

Mineral Content

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

Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene

Compound Content

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

Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide

Transformation

Metamorphism

Yes

Types of Metamorphism

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

Impact Metamorphism

Weathering

Yes

Types of Weathering

Chemical Weathering

Chemical Weathering, Mechanical Weathering

Erosion

Yes

Types of Erosion

Chemical Erosion, Glacier Erosion, Wind Erosion

Chemical Erosion, Sea Erosion

Properties

Physical Properties

Hardness

5.5-6

Grain Size

Medium to Coarse Grained

Coarse Grained

Fracture

Not Available

Irregular

Streak

White

Porosity

Less Porous

Luster

Grainy, Pearly and Vitreous

Shiny

Compressive Strength

175.00 N/mm²

Not Available

Cleavage

Not Available

Imperfect

Toughness

Not Available

2.1

Specific Gravity

2.6-2.7

3-3.01

Transparency

Opaque

Translucent to Opaque

Density

2.6-2.8 g/cm³

3.1-3.4 g/cm³

Thermal Properties

Specific Heat Capacity

0.79 kJ/Kg K

1.25 kJ/Kg K

Resistance

Heat Resistant, Wear Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

Japan, Oman

Africa

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

South Africa

Europe

Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela

France, Germany, Italy, Venezuela

Others

Not Yet Found

Hawaii Islands, Mid-Atlantic Ridge

Deposits in Western Continents

North America

Canada, USA

South America

Not Yet Found

Deposits in Oceania Continent

Australia

Not Yet Found

Summary >>

<< Reserves

All about Granodiorite and Harzburgite Properties

Know all about Granodiorite and Harzburgite properties here. All properties of rocks are important as they define the type of rock and its application. Granodiorite and Harzburgite belong to Igneous Rocks.Texture of Granodiorite is Granular, Phaneritic whereas that of Harzburgite is Phaneritic. Granodiorite appears Veined or Pebbled and Harzburgite appears Rough and Shiny. The luster of Granodiorite is grainy, pearly and vitreous while that of Harzburgite is shiny. Granodiorite is available in black, grey, orange, pink, white colors whereas Harzburgite is available in dark greenish - grey colors. The commercial uses of Granodiorite are curling, gemstone, laboratory bench tops, tombstones and that of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.