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Serpentinite and Novaculite


Novaculite and Serpentinite


Definition

Definition
A hydration and metamorphic transformation of ultramafic rock from the Earth's mantle is called as serpentinization, a group of minerals is formed by serpentinization compose rock 'serpentinite'.   
Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture   

History
  
  

Origin
USA   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From English word serpentinization.   
From Latin word novacula, for razor stone   

Class
Metamorphic Rocks   
Sedimentary Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Not Applicable   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Earthy   
Banded, Glassy, Rough, Vitreous   

Color
Black, Brown, Colourless, Green, Grey, White   
Black, Brown, Green, Grey, Red, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
No   
Yes   

Acid Resistant
No   
Yes   

Appearance
Rough and Dull   
Glassy or Pearly   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration   
Countertops, Decorative Aggregates, Flooring, Interior Decoration   

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement   
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   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture   
Artifacts, Monuments   

Other Uses
  
  

Commercial Uses
Commemorative Tablets, Creating Artwork   
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   

Types

Types
Jadeitite   
Not Available   

Features
Host Rock for Lead   
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
Not Yet Used   

Fossils
Absent   
Present   

Formation

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

Composition
  
  

Mineral Content
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides   
Quartz, Silicon   

Compound Content
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur   
Ca, Silicon Dioxide   

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism   
Not Applicable   

Weathering
No   
No   

Types of Weathering
Not Applicable   
Not Applicable   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Wind Erosion   
Chemical Erosion, Coastal Erosion, Glacier Erosion   

Properties

Physical Properties
  
  

Hardness
3-5   
7   

Grain Size
Very fine-grained   
Fine Grained   

Fracture
Uneven   
Conchoidal   

Streak
White, Greenish White or Grey   
Colorless   

Porosity
Less Porous   
Less Porous   

Luster
Waxy and Dull   
Waxy and Dull   

Compressive Strength
310.00 N/mm2   
2
450.00 N/mm2   
1

Cleavage
Irregular   
Non-Existent   

Toughness
7   
1.5   

Specific Gravity
2.79-3   
2.5-2.7   

Transparency
Opaque   
Translucent to Opaque   

Density
2.5-3 g/cm3   
2.7 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.95 kJ/Kg K   
9
0.74 kJ/Kg K   
19

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Saudi Arabia, Singapore, South Korea   
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam   

Africa
Ethiopia, Western Africa   
Kenya, Morocco, South Africa, Tanzania   

Europe
England, Georgia, Switzerland, United Kingdom   
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom   

Others
Not Yet Found   
Greenland, Mid-Atlantic Ridge   

Deposits in Western Continents
  
  

North America
Canada   
Canada, Mexico, USA   

South America
Colombia   
Bolivia, Brazil   

Deposits in Oceania Continent
  
  

Australia
Central Australia, New South Wales, New Zealand, Western Australia   
New South Wales, Queensland, South Australia, Western Australia   

Summary >>
<< Reserves

All about Serpentinite and Novaculite Properties

Know all about Serpentinite and Novaculite properties here. All properties of rocks are important as they define the type of rock and its application. Serpentinite belongs to Metamorphic Rocks while Novaculite belongs to Sedimentary Rocks.Texture of Serpentinite is Earthy whereas that of Novaculite is Banded, Glassy, Rough, Vitreous. Serpentinite appears Rough and Dull and Novaculite appears Glassy or Pearly. The luster of Serpentinite and Novaculite is waxy and dull. Serpentinite is available in black, brown, colourless, green, grey, white colors whereas Novaculite is available in black, brown, green, grey, red, white colors. The commercial uses of Serpentinite are commemorative tablets, creating artwork and that 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.

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