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Felsite
Felsite

Jasperoid
Jasperoid



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Felsite vs Jasperoid

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Definition

Definition

Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks

History

Origin

-
USA

Discoverer

Unknown
Unknown

Etymology

From English feldspar and -ite
From silica, the main mineral content of Jasperoid

Class

Igneous Rocks
Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

Volcanic
-

Other Categories

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

Texture

Texture

Arborescent Patterned, Vitreous
Earthy

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Layered, Banded, Veined and Shiny
Glassy or Pearly

Uses

Architecture

Interior Uses

Decorative Aggregates, Flooring, Interior Decoration
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock

Medical Industry

Surgery
Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts
Artifacts, Jewellery, Monuments, Sculpture

Other Uses

Commercial Uses

Mirror, Jewelry
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

Types

Types

Igneous rock
-

Features

Available in Lots of Colors and Patterns, Clasts are smooth to touch, Splintery, Very fine grained rock
Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Present

Formation

Formation

Felsite 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.
Jasperoid is a rare and peculiar type of metasomatic alteration of rocks. It is formed by extreme alteration of wall rocks within a shear zone which may occur in sediments, andesites, trachytes and basalts.

Composition

Mineral Content

Feldspar, Iron Oxides
Clay Minerals, Pyrite, Quartz, Sulfides

Compound Content

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

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
-

Erosion

Types of Erosion

Chemical Erosion, Glacier Erosion, Water Erosion
-

Properties

Physical Properties

Hardness

5-5.53.5-4
1 7
👆🏻

Grain Size

Fine Grained
Medium to Fine Coarse Grained

Fracture

Conchoidal
Conchoidal

Streak

White
White

Porosity

Very Less Porous
Less Porous

Luster

Vitreous
Vitreous and Pearly

Compressive Strength

0.15 N/mm2140.00 N/mm2
0.15 450
👆🏻

Cleavage

-
Perfect

Toughness

-
1

Specific Gravity

2.6-2.72.8-3
0 8.4
👆🏻

Transparency

Translucent
Transparent to 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, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Afghanistan, Indonesia, Japan, Russia
China, India

Africa

Kenya
Morocco, Namibia

Europe

Greece, Hungary, Iceland, Italy, Turkey
Austria, Italy, Romania, Spain, Switzerland

Others

-
-

Deposits in Western Continents

North America

Canada, Mexico, USA
Mexico, USA

South America

Argentina, Chile, Ecuador, Peru
Brazil, Colombia

Deposits in Oceania Continent

Australia

New Zealand
New South Wales, Queensland, Yorke Peninsula

Felsite vs Jasperoid 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 Felsite and Jasperoid Reserves. Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Jasperoid is a rare, peculiar type of metasomatic alteration of 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 Felsite vs Jasperoid information and Felsite vs Jasperoid characteristics in the upcoming sections.

Felsite vs Jasperoid 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. Felsite vs Jasperoid characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Felsite and Properties of Jasperoid. Learn more about Felsite vs Jasperoid in the next section. The interior uses of Felsite include Decorative aggregates, Flooring and Interior decoration whereas the interior uses of Jasperoid include Decorative aggregates, Floor tiles, Homes and Interior decoration. Due to some exceptional properties of Felsite and Jasperoid, they have various applications in construction industry. The uses of Felsite in construction industry include Arrowheads, Cutting tool, Knives, Scrapers, Spear points and that of Jasperoid include As a flux in the production of steel and pig iron, As a sintering agent in steel industry to process iron ore, As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics, Serves as an oil and gas reservoir rock.

More about Felsite and Jasperoid

Here you can know more about Felsite and Jasperoid. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Felsite and Jasperoid consists of mineral content and compound content. The mineral content of Felsite includes Feldspar, Iron Oxides and mineral content of Jasperoid includes Clay Minerals, Pyrite, Quartz, Sulfides. You can also check out the list of all Igneous Rocks. When we have to compare Felsite vs Jasperoid, the texture, color and appearance plays an important role in determining the type of rock. Felsite is available in black, blue, brown, green, orange, red, tan, yellow colors whereas, Jasperoid is available in black, brown, green, grey, pink, white colors. Appearance of Felsite is Layered, Banded, Veined and Shiny and that of Jasperoid is Glassy or Pearly. Properties of rock is another aspect for Felsite vs Jasperoid. The hardness of Felsite is 5-5.5 and that of Jasperoid is 3.5-4. The types of Felsite are Igneous rock whereas types of Jasperoid are -. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Felsite and Jasperoid is white. The specific heat capacity of Felsite is 0.92 kJ/Kg K and that of Jasperoid 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.Felsite is heat resistant, impact resistant whereas Jasperoid is heat resistant, pressure resistant, wear resistant.