Obsidian

Basalt

Obsidian vs Basalt

Obsidian

Basalt

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Definition

Origin

Discoverer

Etymology

Class

Sub-Class

Group

Other Categories

Texture

Color

Maintenance

Durability

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Uses

Interior Uses

Exterior Uses

Other Architectural Uses

Construction Industry

Medical Industry

Antiquity Uses

Commercial Uses

Types

Features

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Formation

Mineral Content

Compound Content

Metamorphism

Types of Metamorphism

Weathering

Types of Weathering

Erosion

Types of Erosion

Properties

Hardness

Grain Size

Fracture

Streak

Porosity

Luster

Compressive Strength

Cleavage

Toughness

Specific Gravity

Transparency

Density

Specific Heat Capacity

Resistance

Reserves

Asia

Africa

Europe

Others

North America

South America

Australia

Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth

Ethiopia

Obsius

From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius

Igneous Rocks

Durable Rock, Medium Hardness Rock

Volcanic

Opaque Rock

Glassy

Black, Blue, Brown, Green, Orange, Red, Tan, Yellow

Less

Durable

✔✘

Shiny

Decorative Aggregates, Interior Decoration

Garden Decoration

Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points

Surgery

Artifacts, Jewellery

Creating Artwork, Mirror, Used in aquariums

Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian

Blocks negativity, Helps to protect against depression

Absent

When the lava is released from volcano, it undergoes a very rapid cooling which freezes the mechanisms of crystallization. The result is a volcanic glass with a uniform smooth texture.

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

✔✘

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

✔✘

Biological Weathering, Chemical Weathering, Mechanical Weathering

✔✘

Chemical Erosion, Coastal Erosion, Glacier Erosion

5-5.5

Conchoidal

White

Very Less Porous

Vitreous

0.15 N/mm²

2.6-2.7

Translucent

2.6 g/cm³

0.92 kJ/Kg K

Heat Resistant, Impact Resistant

Afghanistan, Indonesia, Japan, Russia

Kenya

Greece, Hungary, Iceland, Italy, Turkey

Canada, Mexico, USA

Argentina, Chile, Ecuador, Peru

New Zealand

Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of Earth

Egypt

Georgius Agricola

From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites

Igneous Rocks

Durable Rock, Medium Hardness Rock

Volcanic

Fine Grained Rock, Opaque Rock

Glassy, Massive, Porphyritic, Scoriaceous, Vesicular

Black, Brown, Light to Dark Grey

Durable

✔✘

Dull and Soft

Floor Tiles, Homes, Hotels, Kitchens

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

Curbing, Whetstones

Arrowheads, As Dimension Stone, Cobblestones, Cutting Tool, Rail Track Ballast, Roadstone

Artifacts, Monuments

An Oil and Gas Reservoir, Commemorative Tablets, Creating Artwork, Used in aquariums

Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite

Has High structural resistance against erosion and climate, Very fine grained rock

Easter Island in the Polynesian Triangle, Pacific Ocean, Gateway of India in Mumbai, India, Gol Gumbaz in Karnataka, India

Absent

Basalt forms when lava reaches the Earth's surface near an active volcano. The temperature of lava is between 1100 to 1250° C when it gets to the surface.

Olivine, Plagioclase, Pyroxene

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

✔✘

Contact Metamorphism

✔✘

Biological Weathering

✔✘

Fine Grained

Conchoidal

White to Grey

Less Porous

37.40 N/mm²

2.3

2.8-3

Opaque

2.9-3.1 g/cm³

0.84 kJ/Kg K

Heat Resistant, Pressure Resistant, Wear Resistant

India, Russia

South Africa

Iceland

Canada, USA

Brazil

Obsidian vs Basalt Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Obsidian vs Basalt. . . These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Obsidian vs Basalt information and Obsidian vs Basalt characteristics in the upcoming sections.

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Obsidian vs Basalt Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Obsidian vs Basalt characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Obsidian and Properties of Basalt. Learn more about Obsidian vs Basalt in the next section. The interior uses of Obsidian include whereas the interior uses of Basalt include . Due to some exceptional properties of Obsidian and Basalt, they have various applications in construction industry. The uses of Obsidian in construction industry include and that of Basalt include .

More about Obsidian and Basalt

Here you can know more about Obsidian and Basalt. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Obsidian and Basalt consists of mineral content and compound content. The mineral content of Obsidian includes and mineral content of Basalt includes . You can also check out the list of all Igneous Rocks. When we have to compare Obsidian vs Basalt, the texture, color and appearance plays an important role in determining the type of rock. Obsidian is available in colors whereas, Basalt is available in colors. Appearance of Obsidian is and that of Basalt is . Properties of rock is another aspect for Obsidian vs Basalt. Hardness of Obsidian and Basalt is . The types of Obsidian are whereas types of Basalt are . Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Obsidian and Basalt is . The specific heat capacity of Obsidian is and that of Basalt is . Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Obsidian is whereas Basalt is .