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Shoshonite
Shoshonite

Chalk
Chalk



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Shoshonite
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Shoshonite vs Chalk

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Definition

Definition

Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers

History

Origin

Wyoming,USA
-

Discoverer

Iddings
Unknown

Etymology

From the place of origin called Shoshone riverin Wyoming
From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone

Class

Igneous Rocks
Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock

Family

Group

Volcanic
-

Other Categories

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Porphyritic
Clastic or Non-Clastic

Color

Brown- Black, Dark Brown
Grey, White, Yellow

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull
Soft

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Powder

Industry

Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, raw material for manufacture of quicklime and slaked lime, Source of calcium

Medical Industry

-
-

Antiquity Uses

Sculpture
Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork
Alumina Refineries, Creating Artwork, Drawing on blackboards, Gymnasts, athletes and mountain climbers use for grip, In aquifers, Paper Industry, Production of Lime, Raw material for manufacture of quicklime, slaked lime, Soil Conditioner, Whiting, Whiting material in toothpaste, paint and paper

Types

Types

Intermediate volcanic rock
Chalk Marl and Marl

Features

Has High structural resistance against erosion and climate, Very fine grained rock
Clasts are smooth to touch, Is one of the oldest rock, Smooth to touch, Very fine grained rock

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Present

Formation

Formation

Shoshonite 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.
Chalk is formed from lime mud, which accumulates on the sea floor which is then transformed into rock by geological processes.

Composition

Mineral Content

Pyroxene
Calcite, Clay, Clay Minerals, Quartz, Sand

Compound Content

Aluminium Oxide, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Titanium Dioxide
Ca, NaCl, CaO

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
-

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Coastal Erosion, Water Erosion

Properties

Physical Properties

Hardness

61
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Very fine-grained

Fracture

Uneven
-

Streak

White to Grey
White

Porosity

Less Porous
Highly Porous

Luster

Dull
Dull

Compressive Strength

175.00 N/mm25.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

1.6
1

Specific Gravity

2.982.3-2.4
0 8.4
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Transparency

Opaque
Opaque

Density

2.9-3 g/cm32.49-2.50 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.79 kJ/Kg K0.90 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant
Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam

Africa

South Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe

Europe

Iceland
England, France, Germany, Spain, United Kingdom

Others

-
-

Deposits in Western Continents

North America

Canada, USA
Canada, USA

South America

Brazil
Colombia

Deposits in Oceania Continent

Australia

-
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula

Shoshonite vs Chalk 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 Shoshonite and Chalk Reserves. Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. 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 Shoshonite vs Chalk information and Shoshonite vs Chalk characteristics in the upcoming sections.

Shoshonite vs Chalk 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. Shoshonite vs Chalk characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Shoshonite and Properties of Chalk. Learn more about Shoshonite vs Chalk in the next section. The interior uses of Shoshonite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Chalk include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Shoshonite and Chalk, they have various applications in construction industry. The uses of Shoshonite in construction industry include As dimension stone, Cobblestones, Rail track ballast, Roadstone and that of Chalk include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for manufacture of quicklime and slaked lime, Source of calcium.

More about Shoshonite and Chalk

Here you can know more about Shoshonite and Chalk. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Shoshonite and Chalk consists of mineral content and compound content. The mineral content of Shoshonite includes Pyroxene and mineral content of Chalk includes Calcite, Clay, Clay Minerals, Quartz, Sand. You can also check out the list of all Igneous Rocks. When we have to compare Shoshonite vs Chalk, the texture, color and appearance plays an important role in determining the type of rock. Shoshonite is available in brown- black, dark brown colors whereas, Chalk is available in grey, white, yellow colors. Appearance of Shoshonite is Dull and that of Chalk is Soft. Properties of rock is another aspect for Shoshonite vs Chalk. The hardness of Shoshonite is 6 and that of Chalk is 1. The types of Shoshonite are Intermediate volcanic rock whereas types of Chalk are Chalk Marl and Marl. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Shoshonite is white to grey while that of Chalk is white. The specific heat capacity of Shoshonite is 0.79 kJ/Kg K and that of Chalk is 0.90 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Shoshonite is heat resistant, pressure resistant whereas Chalk is heat resistant.