Porphyry

Turbidite

Porphyry and Turbidite

Porphyry

Turbidite

Add ⊕

1 Definition

1.1 Definition

Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix

A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles

1.2 History

1.2.1 Origin

Egypt

European Foreland Basins

1.2.2 Discoverer

Unknown

Arnold H. Bouma

1.3 Etymology

From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites

From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939

1.4 Class

Igneous Rocks

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Plutonic

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Porphyritic

Mud-rich, Sandy

2.2 Color

Black, Brown, Colourless, Green, Grey, Red, Rust, White

Black, Brown, Colourless, Green, Grey, Pink

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

Dull and Banded

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Interior Decoration

Bathrooms, Countertops, Decorative Aggregates, Flooring, Homes, Interior Decoration

3.1.2 Exterior Uses

Garden Decoration, Paving Stone

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

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

Construction Aggregate

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork, Gemstone, Jewelry

Cemetery Markers, Creating Artwork

4 Types

4.1 Types

Rhomb Porphyry

Not Available

4.2 Features

Generally rough to touch, Is one of the oldest rock, Surfaces are often shiny

High silica content, Host Rock for Lead

4.3 Archaeological Significance

4.3.1 Monuments

Used

4.3.2 Famous Monuments

Data Not Available

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Not Used

Used

4.3.6 Petroglyphs

Not Used

Used

4.3.7 Figurines

Used

4.4 Fossils

Absent

Present

5 Formation

5.1 Formation

Porphyry is formed in two stages: the magma cools slowly deep within the crust or the magma is cools rapidly as it erupts from a volcano, creating small grains that are usually invisible to naked eye.

Turbidite is a type of sedimentary rock formed when a river carries or transports pieces of broken rock as it flows. These particles then settle down and are subjected to high temperature and pressures hence forming Turbidite.

5.2 Composition

5.2.1 Mineral Content

Biotite, Chert, Feldspar, Garnet, Graphite, Quartz, Silica

Coesite, Quartz, Sand

5.2.2 Compound Content

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

CaO, Carbon Dioxide, MgO

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

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

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Not Registered

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Chemical Erosion, Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

6-73

1 7

6.1.2 Grain Size

Fine Grained

Fine to Coarse Grained

6.1.3 Fracture

Irregular

Splintery

6.1.4 Streak

White

White, Greenish White or Grey

6.1.5 Porosity

Less Porous

Very Less Porous

6.1.6 Luster

Dull

Metallic

6.1.7 Compressive Strength

NA200.00 N/mm²

0.15 450

6.1.8 Cleavage

Imperfect

Disjunctive

6.1.9 Toughness

1.7

2.4

6.1.10 Specific Gravity

2.5-42.46-2.73

0 8.4

6.1.11 Transparency

Translucent to Opaque

Opaque

6.1.12 Density

2.5-2.52 g/cm³1.6-2.5 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

NA0.92 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam

Not Yet Found

7.1.2 Africa

Egypt, Ethiopia, Ghana, South Africa

Western Africa

7.1.3 Europe

Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland

Austria, Belarus, Romania, Switzerland, United Kingdom

7.1.4 Others

Greenland

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, Cuba, Jamaica, USA

Canada, USA

7.2.2 South America

Bolivia, Brazil, Colombia, Ecuador, Paraguay

Brazil, Colombia

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Western Australia

New Zealand, Western Australia

All about Porphyry and Turbidite Properties

Know all about Porphyry and Turbidite properties here. All properties of rocks are important as they define the type of rock and its application. Porphyry belongs to Igneous Rocks while Turbidite belongs to Sedimentary Rocks.Texture of Porphyry is Porphyritic whereas that of Turbidite is Mud-rich, Sandy. Porphyry appears Dull and Turbidite appears Dull and Banded. The luster of Porphyry is dull while that of Turbidite is metallic. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas Turbidite is available in black, brown, colourless, green, grey, pink colors. The commercial uses of Porphyry are creating artwork, gemstone, jewelry and that of Turbidite are cemetery markers, creating artwork.