×

Jasperoid
Jasperoid

Hornfels
Hornfels



ADD
Compare
X
Jasperoid
X
Hornfels

Jasperoid vs Hornfels

Definition

Definition

Jasperoid is a rare, peculiar type of metasomatic alteration of rocks
Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock

History

Origin

USA
New Zealand

Discoverer

Unknown
Unknown

Etymology

From silica, the main mineral content of Jasperoid
From German which means hornstone

Class

Sedimentary Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock

Family

Group

-
-

Other Categories

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

Texture

Texture

Earthy
Granular, Platy

Color

Black, Brown, Green, Grey, Pink, White
Brown, Dark Greenish - Grey, Green, Reddish Brown

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Glassy or Pearly
Dull

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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
for Road Aggregate, Roadstone

Medical Industry

Taken as a Supplement for Calcium or Magnesium
-

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture
Artifacts, Monuments

Other Uses

Commercial Uses

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)
Cemetery Markers, Commemorative Tablets, Creating Artwork

Types

Types

-
Biotite hornfels

Features

Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits
Smooth to touch

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

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

Composition

Mineral Content

Clay Minerals, Pyrite, Quartz, Sulfides
Andalusite

Compound Content

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO
Fe, Mg

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
-

Weathering

Types of Weathering

-
Biological Weathering

Erosion

Types of Erosion

-
Chemical Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3.5-42-3
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Fine Grained

Fracture

Conchoidal
Conchoidal

Streak

White
-

Porosity

Less Porous
Highly Porous

Luster

Vitreous and Pearly
Shiny

Compressive Strength

140.00 N/mm25.80 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
Perfect

Toughness

1
-

Specific Gravity

2.8-33.4-3.9
0 8.4
👆🏻

Transparency

Transparent to Translucent
Opaque

Density

2.8-2.9 g/cm30.25-0.30 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.84 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand

Africa

Morocco, Namibia
Cameroon, East Africa, Tanzania, Western Africa

Europe

Austria, Italy, Romania, Spain, Switzerland
United Kingdom

Others

-
-

Deposits in Western Continents

North America

Mexico, USA
Canada, USA

South America

Brazil, Colombia
Bolivia, Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Yorke Peninsula
New South Wales, New Zealand, Queensland, Western Australia

Jasperoid vs Hornfels 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 Jasperoid and Hornfels Reserves. Jasperoid is a rare, peculiar type of metasomatic alteration of rocks. Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. 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 Jasperoid vs Hornfels information and Jasperoid vs Hornfels characteristics in the upcoming sections.

Jasperoid vs Hornfels 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. Jasperoid vs Hornfels characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Jasperoid and Properties of Hornfels. Learn more about Jasperoid vs Hornfels in the next section. The interior uses of Jasperoid include Decorative aggregates, Floor tiles, Homes and Interior decoration whereas the interior uses of Hornfels include Decorative aggregates, Flooring, Homes and Interior decoration. Due to some exceptional properties of Jasperoid and Hornfels, they have various applications in construction industry. The uses of Jasperoid in construction industry 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 and that of Hornfels include For road aggregate, Roadstone.

More about Jasperoid and Hornfels

Here you can know more about Jasperoid and Hornfels. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Jasperoid and Hornfels consists of mineral content and compound content. The mineral content of Jasperoid includes Clay Minerals, Pyrite, Quartz, Sulfides and mineral content of Hornfels includes Andalusite. You can also check out the list of all Sedimentary Rocks. When we have to compare Jasperoid vs Hornfels, the texture, color and appearance plays an important role in determining the type of rock. Jasperoid is available in black, brown, green, grey, pink, white colors whereas, Hornfels is available in brown, dark greenish - grey, green, reddish brown colors. Appearance of Jasperoid is Glassy or Pearly and that of Hornfels is Dull. Properties of rock is another aspect for Jasperoid vs Hornfels. The hardness of Jasperoid is 3.5-4 and that of Hornfels is 2-3. The types of Jasperoid are - whereas types of Hornfels are Biotite hornfels. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Jasperoid is white while that of Hornfels is . The specific heat capacity of Jasperoid is 0.92 kJ/Kg K and that of Hornfels is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Jasperoid is heat resistant, pressure resistant, wear resistant whereas Hornfels is heat resistant, impact resistant, pressure resistant.