Harzburgite

Rhyolite

Harzburgite and Rhyolite

Harzburgite

Rhyolite

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1 Definition

1.1 Definition

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

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

1.2 History

1.2.1 Origin

Germany

North America

1.2.2 Discoverer

Unknown

Ferdinand von Richthofen

1.3 Etymology

From the name of a town in Harzburg, Germany

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

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Plutonic

Volcanic

1.6 Other Categories

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Phaneritic

Aphanitic, Glassy, Porphyritic

2.2 Color

Dark Greenish - Grey

Grey, White, Light Black

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

Rough and Shiny

Banded

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Homes, Hotels, Interior Decoration, Kitchens

3.1.2 Exterior Uses

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

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

3.1.3 Other Architectural Uses

Curbing

Not Yet Used

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Cobblestones

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

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts

3.4 Other Uses

3.4.1 Commercial Uses

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

Gemstone, Laboratory bench tops, Jewelry

4 Types

4.1 Types

Not Available

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

4.2 Features

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

Acidic in nature, Available in lots of colors

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Data Not Available

Not Applicable

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

Not Applicable

4.3.5 Pictographs

Used

Not Used

4.3.6 Petroglyphs

Used

Not Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

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.

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

5.2 Composition

5.2.1 Mineral Content

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

Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz

5.2.2 Compound Content

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

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

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Impact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Sea Erosion

Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

5.5-66-7

1 7

6.1.2 Grain Size

Coarse Grained

Large and Coarse Grained

6.1.3 Fracture

Irregular

Sub-conchoidal

6.1.4 Streak

White

Colorless

6.1.5 Porosity

Less Porous

Highly Porous

6.1.6 Luster

Shiny

Earthy

6.1.7 Compressive Strength

NA140.00 N/mm²

0.15 450

6.1.8 Cleavage

Imperfect

Not Available

6.1.9 Toughness

2.1

6.1.10 Specific Gravity

3-3.012.65-2.67

0 8.4

6.1.11 Transparency

Translucent to Opaque

Opaque

6.1.12 Density

3.1-3.4 g/cm³2.4-2.6 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

1.25 kJ/Kg KNA

0.14 3.2

6.2.2 Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Japan, Oman

China, India

7.1.2 Africa

South Africa

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

7.1.3 Europe

France, Germany, Italy, Venezuela

Germany, Iceland, Ireland, Italy, Spain

7.1.4 Others

Hawaii Islands, Mid-Atlantic Ridge

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

7.2.2 South America

Not Yet Found

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

7.3 Deposits in Oceania Continent

7.3.1 Australia

Not Yet Found

New Zealand, Queensland, Western Australia

All about Harzburgite and Rhyolite Properties

Know all about Harzburgite and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Harzburgite and Rhyolite belong to Igneous Rocks.Texture of Harzburgite is Phaneritic whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Harzburgite appears Rough and Shiny and Rhyolite appears Banded. The luster of Harzburgite is shiny while that of Rhyolite is earthy. Harzburgite is available in dark greenish - grey colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Rhyolite are gemstone, laboratory bench tops, jewelry.