Granodiorite

Diabase

Granodiorite and Diabase

Granodiorite

Diabase

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Definition

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

Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar

History

Origin

Germany

Discoverer

Unknown

Christian Leopold von Buch

Etymology

From granite + diorite

From Greek di + base

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Plutonic

Volcanic

Other Categories

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Granular, Phaneritic

Aphanitic, Granular

Color

Black, Grey, Orange, Pink, White

Dark Grey to Black

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined or Pebbled

Vesicular

Uses

Architecture

Interior Uses

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

Countertops, Decorative Aggregates, Homes, Interior Decoration, Kitchens

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Curling, Gemstone, Laboratory bench tops, Tombstones

An Oil and Gas Reservoir, Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones

Types

Granodiorite

Dolerite

Features

Available in Lots of Colors and Patterns

Smooth to touch

Archaeological Significance

Monuments

Famous Monuments

Stonehenge in English county of Wiltshire

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

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.

Diabase forms when molten igneous rock is squeezed up into a vertical crack in other rocks, the crack is usually forced apart and the molten rock cools in the space to form a tabular igneous intrusion cutting across the surrounding rocks and is known as a dike.

Composition

Mineral Content

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

Augite, Chlorite, Olivine, Plagioclase, Pyroxene, Pyrrhotite, Serpentine

Compound Content

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

Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Chemical Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Glacier Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

Properties

Physical Properties

Hardness

1 7

👆🏻

Grain Size

Medium to Coarse Grained

Fine to Medium Grained

Fracture

Conchoidal

Streak

White

Black

Porosity

Less Porous

Highly Porous

Luster

Grainy, Pearly and Vitreous

Compressive Strength

175.00 N/mm²225.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.6

Specific Gravity

2.6-2.72.86-2.87

0 8.4

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Transparency

Opaque

Density

2.6-2.8 g/cm³2.7-3.3 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.79 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

India

Africa

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

South Africa, Tanzania

Europe

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

Germany, Greece, Italy, Scotland, Turkey

Others

Antarctica, Greenland

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland, Western Australia

All about Granodiorite and Diabase Properties

Know all about Granodiorite and Diabase properties here. All properties of rocks are important as they define the type of rock and its application. Granodiorite and Diabase belong to Igneous Rocks.Texture of Granodiorite is Granular, Phaneritic whereas that of Diabase is Aphanitic, Granular. Granodiorite appears Veined or Pebbled and Diabase appears Vesicular. The luster of Granodiorite is grainy, pearly and vitreous while that of Diabase is . Granodiorite is available in black, grey, orange, pink, white colors whereas Diabase is available in dark grey to black colors. The commercial uses of Granodiorite are curling, gemstone, laboratory bench tops, tombstones and that of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.