Novaculite

Lherzolite

Novaculite and Lherzolite

Novaculite

Lherzolite

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1 Definition

1.1 Definition

Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture

Lherzolite is a type of ultramafic igneous rock which contains essential olivine and clinopyroxene and orthopyroxene in equal proportions

1.2 History

1.2.1 Origin

Unknown

France

1.2.2 Discoverer

Unknown

1.3 Etymology

From Latin word novacula, for razor stone

From the Lherz Massif, an alpine peridotite complex, at Étang de Lers, near Massat in the French Pyrenees; Lherz is the archaic spelling of this location

1.4 Class

Sedimentary Rocks

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Not Applicable

Plutonic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Banded, Glassy, Rough, Vitreous

Grenue

2.2 Color

Black, Brown, Green, Grey, Red, White

Black, Dark Greenish - Grey, Green, Pink, Purple

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Glassy or Pearly

Glassy, Vesicular and Foilated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Countertops, Decorative Aggregates, Flooring, Interior Decoration

Decorative Aggregates, Entryways, Homes, Interior Decoration

1.1.1 Exterior Uses

As Building Stone, Garden Decoration

As Building Stone, As Facing Stone, Office Buildings

1.2.1 Other Architectural Uses

Curbing

1.3 Industry

1.3.1 Construction Industry

Arrowheads, Building houses or walls, Cement Manufacture, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives, Landscaping, Making natural cement, Production of Glass and Ceramics, Rail Track Ballast, Roadstone, Spear Points, Used to sharpen metal tools and weapons

Landscaping, Manufacture of Magnesium and Dolomite Refractories, Used for flooring, stair treads, borders and window sills.

1.4.2 Medical Industry

Not Yet Used

1.5 Antiquity Uses

Artifacts, Monuments

Artifacts, Sculpture

1.6 Other Uses

1.6.1 Commercial Uses

Cemetery Markers, Gemstone, In aquifers, In fire-starting tools, Jewelry, Manufacture of tools, Pebbles are used in ball mills to grind in ceramics industry, To determine the gold content of jewelry

As armour rock for sea walls, Source of Magnesia (MgO), Used in aquariums

2 Types

2.1 Types

Not Available

Garnet Lherzolite

2.2 Features

Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate

Host Rock for Lead

2.3 Archaeological Significance

2.3.2 Monuments

Used

Not Yet Used

2.3.3 Famous Monuments

Data Not Available

Not Applicable

2.3.5 Sculpture

Not Yet Used

Used

2.3.7 Famous Sculptures

Not Applicable

Data Not Available

2.3.8 Pictographs

Not Used

2.4.1 Petroglyphs

Not Used

2.4.2 Figurines

Not Yet Used

Used

2.5 Fossils

Present

Absent

3 Formation

3.1 Formation

Novaculite forms when microcrystals of silicon dioxide grow within soft sediments that become limestone or chalk. The formation of Novaculite can be either of chemical or biological origin.

Lherzolite 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.

3.2 Composition

3.2.1 Mineral Content

Quartz, Silicon

Harzburgite, Olivine, Pyroxene, Pyrrhotite

3.2.2 Compound Content

Ca, Silicon Dioxide

CaO, Cr, Chromium(III) Oxide, MgO

3.3 Transformation

3.3.1 Metamorphism

✔ ✘

3.3.2 Types of Metamorphism

Not Applicable

Cataclastic Metamorphism, Contact Metamorphism

3.3.3 Weathering

✔ ✘

3.3.4 Types of Weathering

Not Applicable

Biological Weathering, Chemical Weathering, Mechanical Weathering

3.3.5 Erosion

✔ ✘

3.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Chemical Erosion, Water Erosion, Wind Erosion

4 Properties

4.1 Physical Properties

4.1.1 Hardness

76.5

1 7

4.1.2 Grain Size

Fine Grained

4.1.3 Fracture

Conchoidal

4.1.4 Streak

Colorless

White

4.1.5 Porosity

Less Porous

4.1.6 Luster

Waxy and Dull

Subvitreous to Dull

4.1.7 Compressive Strength

450.00 N/mm²290.00 N/mm²

0.15 450

4.1.8 Cleavage

Non-Existent

Perfect

4.1.9 Toughness

1.5

2.7

4.1.10 Specific Gravity

2.5-2.72.86

0 8.4

4.1.11 Transparency

Translucent to Opaque

Opaque

4.1.12 Density

2.7 g/cm³2.8-2.9 g/cm³

0 1400

4.2 Thermal Properties

4.2.1 Specific Heat Capacity

0.74 kJ/Kg K0.95 kJ/Kg K

0.14 3.2

4.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

5 Reserves

5.1 Deposits in Eastern Continents

5.1.1 Asia

China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam

Russia, South Korea

5.1.2 Africa

Kenya, Morocco, South Africa, Tanzania

Western Africa

5.1.3 Europe

Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom

United Kingdom

5.1.4 Others

Greenland, Mid-Atlantic Ridge

Not Yet Found

5.2 Deposits in Western Continents

5.2.1 North America

Canada, Mexico, USA

USA

5.2.2 South America

Bolivia, Brazil

Not Yet Found

5.3 Deposits in Oceania Continent

5.3.1 Australia

New South Wales, Queensland, South Australia, Western Australia

Central Australia, Western Australia

All about Novaculite and Lherzolite Properties

Know all about Novaculite and Lherzolite properties here. All properties of rocks are important as they define the type of rock and its application. Novaculite belongs to Sedimentary Rocks while Lherzolite belongs to Igneous Rocks.Texture of Novaculite is Banded, Glassy, Rough, Vitreous whereas that of Lherzolite is Grenue. Novaculite appears Glassy or Pearly and Lherzolite appears Glassy, Vesicular and Foilated. The luster of Novaculite is waxy and dull while that of Lherzolite is subvitreous to dull. Novaculite is available in black, brown, green, grey, red, white colors whereas Lherzolite is available in black, dark greenish - grey, green, pink, purple colors. The commercial uses of Novaculite are cemetery markers, gemstone, in aquifers, in fire-starting tools, jewelry, manufacture of tools, pebbles are used in ball mills to grind in ceramics industry, to determine the gold content of jewelry and that of Lherzolite are as armour rock for sea walls, source of magnesia (mgo), used in aquariums.