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Obsidian
Obsidian

Talc carbonate
Talc carbonate



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Obsidian
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Talc carbonate

Obsidian vs Talc carbonate

Definition

Definition

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
Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.

History

Origin

Ethiopia
China, USA, Middle east

Discoverer

Obsius
Unknown

Etymology

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

Class

Igneous Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock

Family

Group

Volcanic
-

Other Categories

Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Glassy
Very Soft

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Shiny
Soft

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration
Decorative Aggregates, Interior Decoration

Exterior Uses

Garden Decoration
Garden Decoration

Other Architectural Uses

-
Powder

Industry

Construction Industry

Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points
Source of calcium

Medical Industry

Surgery
Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Jewellery
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Creating Artwork, Mirror, Used in aquariums
Manufacturing of baby powder

Types

Types

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

Features

Blocks negativity, Helps to protect against depression
Easily splits into thin plates, Generally rough to touch, Host Rock for Lead

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

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.
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Talc Carbonate is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Composition

Mineral Content

-
Carbonate, Chlorite, Magnesium

Compound Content

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

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
-

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion
-

Properties

Physical Properties

Hardness

5-5.51-2
1 7
👆🏻

Grain Size

-
Fine Grained

Fracture

Conchoidal
Flat

Streak

White
White

Porosity

Very Less Porous
Less Porous

Luster

Vitreous
Pearly

Compressive Strength

0.15 N/mm2250.00 N/mm2
0.15 450
👆🏻

Cleavage

-
Perfect

Toughness

-
1

Specific Gravity

2.6-2.72.86
0 8.4
👆🏻

Transparency

Translucent
Translucent

Density

2.6 g/cm32.8-2.9 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.92 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant
Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Afghanistan, Indonesia, Japan, Russia
-

Africa

Kenya
Ethiopia, Ghana, Western Africa

Europe

Greece, Hungary, Iceland, Italy, Turkey
England

Others

-
-

Deposits in Western Continents

North America

Canada, Mexico, USA
Canada, USA

South America

Argentina, Chile, Ecuador, Peru
Argentina, Bolivia, Uruguay

Deposits in Oceania Continent

Australia

New Zealand
Central Australia, South Australia, Western Australia

Obsidian vs Talc carbonate 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 and Talc carbonate Reserves. 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. Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.. 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 Talc carbonate information and Obsidian vs Talc carbonate characteristics in the upcoming sections.

Obsidian vs Talc carbonate 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 Talc carbonate characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Obsidian and Properties of Talc carbonate. Learn more about Obsidian vs Talc carbonate in the next section. The interior uses of Obsidian include Decorative aggregates and Interior decoration whereas the interior uses of Talc carbonate include Decorative aggregates and Interior decoration. Due to some exceptional properties of Obsidian and Talc carbonate, they have various applications in construction industry. The uses of Obsidian in construction industry include Arrowheads, Cutting tool, Knives, Scrapers, Spear points and that of Talc carbonate include Source of calcium.

More about Obsidian and Talc carbonate

Here you can know more about Obsidian and Talc carbonate. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Obsidian and Talc carbonate consists of mineral content and compound content. The mineral content of Obsidian includes and mineral content of Talc carbonate includes Carbonate, Chlorite, Magnesium. You can also check out the list of all Igneous Rocks. When we have to compare Obsidian vs Talc carbonate, the texture, color and appearance plays an important role in determining the type of rock. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas, Talc carbonate is available in grey, white colors. Appearance of Obsidian is Shiny and that of Talc carbonate is Soft. Properties of rock is another aspect for Obsidian vs Talc carbonate. The hardness of Obsidian is 5-5.5 and that of Talc carbonate is 1-2. The types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian whereas types of Talc carbonate are Sedimentary rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Obsidian and Talc carbonate is white. The specific heat capacity of Obsidian is 0.92 kJ/Kg K and that of Talc carbonate is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Obsidian is heat resistant, impact resistant whereas Talc carbonate is heat resistant, wear resistant.