Harzburgite

Jasperoid

Harzburgite and Jasperoid

Harzburgite

Jasperoid

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Definition

Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine

Jasperoid is a rare, peculiar type of metasomatic alteration of rocks

History

Origin

Germany

USA

Discoverer

Unknown

Etymology

From the name of a town in Harzburg, Germany

From silica, the main mineral content of Jasperoid

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock

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

Texture

Phaneritic

Earthy

Color

Dark Greenish - Grey

Black, Brown, Green, Grey, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Shiny

Glassy or Pearly

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones

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

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Jewellery, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds

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

Types

Ultramafic rock

Features

Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest 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

Harzburgite 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

Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene

Clay Minerals, Pyrite, Quartz, Sulfides

Compound Content

Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Impact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion

Properties

Physical Properties

Hardness

5.5-63.5-4

1 7

👆🏻

Grain Size

Coarse Grained

Medium to Fine Coarse Grained

Fracture

Irregular

Conchoidal

Streak

White

Porosity

Less Porous

Luster

Shiny

Vitreous and Pearly

Compressive Strength

150.00 N/mm²140.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.1

Specific Gravity

3-3.012.8-3

0 8.4

👆🏻

Transparency

Translucent to Opaque

Transparent to Translucent

Density

3.1-3.4 g/cm³2.8-2.9 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

1.25 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Japan, Oman

China, India

Africa

South Africa

Morocco, Namibia

Europe

France, Germany, Italy

Austria, Italy, Romania, Spain, Switzerland

Others

Hawaii Islands, Mid-Atlantic Ridge

Deposits in Western Continents

North America

Canada, USA

Mexico, USA

South America

Brazil, Colombia

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Yorke Peninsula

All about Harzburgite and Jasperoid Properties

Know all about Harzburgite and Jasperoid properties here. All properties of rocks are important as they define the type of rock and its application. Harzburgite belongs to Igneous Rocks while Jasperoid belongs to Sedimentary Rocks.Texture of Harzburgite is Phaneritic whereas that of Jasperoid is Earthy. Harzburgite appears Rough and Shiny and Jasperoid appears Glassy or Pearly. The luster of Harzburgite is shiny while that of Jasperoid is vitreous and pearly. Harzburgite is available in dark greenish - grey colors whereas Jasperoid is available in black, brown, green, grey, pink, white colors. The commercial uses of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Jasperoid are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).