Rhyolite

Turbidite

Rhyolite and Turbidite

Rhyolite

Turbidite

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1 Definition

1.1 Definition

Rhyolite is a fine-grained igneous rock which is rich in silica

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

1.2 History

1.2.1 Origin

North America

European Foreland Basins

1.2.2 Discoverer

Ferdinand von Richthofen

Arnold H. Bouma

1.3 Etymology

From German Rhyolit, from Greek rhuax lava stream + lithos stone

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

Volcanic

Not Applicable

1.6 Other Categories

Coarse Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Aphanitic, Glassy, Porphyritic

Mud-rich, Sandy

2.2 Color

Grey, White, Light Black

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

Banded

Dull and Banded

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes, Hotels, Interior Decoration, Kitchens

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

3.1.2 Exterior Uses

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

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

3.1.3 Other Architectural Uses

Not Yet Used

Curbing

3.2 Industry

3.2.1 Construction Industry

Arrowheads, As Dimension Stone, Building houses or walls, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives

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

Artifacts, Monuments, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

Gemstone, Laboratory bench tops, Jewelry

Cemetery Markers, Creating Artwork

4 Types

4.1 Types

Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.

Not Available

4.2 Features

Acidic in nature, Available in lots of colors

High silica content, Host Rock for Lead

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

Used

4.3.2 Famous Monuments

Not Applicable

Data Not Available

4.3.3 Sculpture

Not Yet Used

Used

4.3.4 Famous Sculptures

Not Applicable

Data Not Available

4.3.5 Pictographs

Not Used

Used

4.3.6 Petroglyphs

Not Used

Used

4.3.7 Figurines

Not Yet Used

Used

4.4 Fossils

Absent

Present

5 Formation

5.1 Formation

Rhyolite is a felsic extrusive rock and due to its high silica content, rhyolite lava is very viscous and is volcanic equivalent of granite.

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, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz

Coesite, Quartz, Sand

5.2.2 Compound Content

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

CaO, Carbon Dioxide, MgO

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Sea Erosion, Water Erosion, Wind 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

Large and Coarse Grained

Fine to Coarse Grained

6.1.3 Fracture

Sub-conchoidal

Splintery

6.1.4 Streak

Colorless

White, Greenish White or Grey

6.1.5 Porosity

Highly Porous

Very Less Porous

6.1.6 Luster

Earthy

Metallic

6.1.7 Compressive Strength

140.00 N/mm²200.00 N/mm²

0.15 450

6.1.8 Cleavage

Not Available

Disjunctive

6.1.9 Toughness

2.4

6.1.10 Specific Gravity

2.65-2.672.46-2.73

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

2.4-2.6 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, Wear Resistant

Heat Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

China, India

Not Yet Found

7.1.2 Africa

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

Western Africa

7.1.3 Europe

Germany, Iceland, Ireland, Italy, Spain

Austria, Belarus, Romania, Switzerland, United Kingdom

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

7.2.2 South America

Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Brazil, Colombia

7.3 Deposits in Oceania Continent

7.3.1 Australia

New Zealand, Queensland, Western Australia

New Zealand, Western Australia

All about Rhyolite and Turbidite Properties

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