×

Obsidian
Obsidian

Novaculite
Novaculite



ADD
Compare
X
Obsidian
X
Novaculite

Obsidian vs Novaculite

1 Definition
1.1 Definition
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth
Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture
1.3 History
1.3.1 Origin
Ethiopia
Unknown
1.4.2 Discoverer
Obsius
Unknown
1.5 Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius
From Latin word novacula, for razor stone
1.6 Class
Igneous Rocks
Sedimentary Rocks
1.6.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.7 Family
1.7.1 Group
Volcanic
Not Applicable
1.8 Other Categories
Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Glassy
Banded, Glassy, Rough, Vitreous
2.2 Color
Black, Blue, Brown, Green, Orange, Red, Tan, Yellow
Black, Brown, Green, Grey, Red, White
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
2.4.3 Scratch Resistant
2.4.4 Stain Resistant
2.5.1 Wind Resistant
2.5.2 Acid Resistant
3.2 Appearance
Shiny
Glassy or Pearly
4 Uses
4.1 Architecture
4.1.1 Interior Uses
Decorative Aggregates, Interior Decoration
Countertops, Decorative Aggregates, Flooring, Interior Decoration
4.2.2 Exterior Uses
Garden Decoration
As Building Stone, Garden Decoration
4.2.3 Other Architectural Uses
Not Yet Used
Curbing
4.3 Industry
4.3.1 Construction Industry
Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points
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
4.4.2 Medical Industry
Surgery
Not Yet Used
4.5 Antiquity Uses
Artifacts, Jewellery
Artifacts, Monuments
4.6 Other Uses
4.6.2 Commercial Uses
Creating Artwork, Mirror, Used in aquariums
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
5 Types
5.1 Types
Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian
Not Available
5.2 Features
Blocks negativity, Helps to protect against depression
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate
5.3 Archaeological Significance
5.3.1 Monuments
Not Yet Used
Used
5.3.3 Famous Monuments
Not Applicable
Data Not Available
5.3.5 Sculpture
Not Yet Used
Not Yet Used
5.3.6 Famous Sculptures
Not Applicable
Not Applicable
5.3.8 Pictographs
Used
Not Used
5.3.9 Petroglyphs
Used
Not Used
6.1.2 Figurines
Not Yet Used
Not Yet Used
6.2 Fossils
Absent
Present
7 Formation
7.1 Formation
When the lava is released from volcano, it undergoes a very rapid cooling which freezes the mechanisms of crystallization. The result is a volcanic glass with a uniform smooth texture.
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.
7.2 Composition
7.2.1 Mineral Content
Not Available
Quartz, Silicon
7.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Ca, Silicon Dioxide
7.3 Transformation
7.3.1 Metamorphism
7.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Not Applicable
7.3.3 Weathering
7.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Not Applicable
7.3.5 Erosion
7.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
8 Properties
8.1 Physical Properties
8.1.1 Hardness
5-5.57
Coal
1 7
8.1.3 Grain Size
Not Applicable
Fine Grained
8.1.4 Fracture
Conchoidal
Conchoidal
8.1.6 Streak
White
Colorless
8.1.7 Porosity
Very Less Porous
Less Porous
8.1.9 Luster
Vitreous
Waxy and Dull
8.1.10 Compressive Strength
0.15 N/mm2450.00 N/mm2
Slate
0.15 450
8.1.14 Cleavage
Non-Existent
Non-Existent
8.1.15 Toughness
Not Available
1.5
8.1.16 Specific Gravity
2.6-2.72.5-2.7
Granite
0 8.4
8.1.20 Transparency
Translucent
Translucent to Opaque
8.1.21 Density
2.6 g/cm32.7 g/cm3
Granite
0 1400
8.2 Thermal Properties
8.2.1 Specific Heat Capacity
0.92 kJ/Kg K0.74 kJ/Kg K
Granulite
0.14 3.2
8.3.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
9 Reserves
9.1 Deposits in Eastern Continents
9.1.1 Asia
Afghanistan, Indonesia, Japan, Russia
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
9.1.2 Africa
Kenya
Kenya, Morocco, South Africa, Tanzania
9.1.3 Europe
Greece, Hungary, Iceland, Italy, Turkey
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
9.1.4 Others
Not Yet Found
Greenland, Mid-Atlantic Ridge
9.2 Deposits in Western Continents
9.2.1 North America
Canada, Mexico, USA
Canada, Mexico, USA
9.2.2 South America
Argentina, Chile, Ecuador, Peru
Bolivia, Brazil
9.3 Deposits in Oceania Continent
9.3.1 Australia
New Zealand
New South Wales, Queensland, South Australia, Western Australia

Obsidian vs Novaculite 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 Obsidian and Novaculite Reserves. Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture. 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 Obsidian vs Novaculite information and Obsidian vs Novaculite characteristics in the upcoming sections.

Obsidian vs Novaculite 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. Obsidian vs Novaculite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Obsidian and Properties of Novaculite. Learn more about Obsidian vs Novaculite in the next section. The interior uses of Obsidian include Decorative aggregates and Interior decoration whereas the interior uses of Novaculite include Countertops, Decorative aggregates, Flooring and Interior decoration. Due to some exceptional properties of Obsidian and Novaculite, they have various applications in construction industry. The uses of Obsidian in construction industry include Arrowheads, Cutting tool, Knives, Scrapers, Spear points and that of Novaculite include 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.

More about Obsidian and Novaculite

Here you can know more about Obsidian and Novaculite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Obsidian and Novaculite consists of mineral content and compound content. The mineral content of Obsidian is not available and mineral content of Novaculite includes Quartz, Silicon. You can also check out the list of all . When we have to compare Obsidian vs Novaculite, the texture, color and appearance plays an important role in determining the type of rock. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas, Novaculite is available in black, brown, green, grey, red, white colors. Appearance of Obsidian is Shiny and that of Novaculite is Glassy or Pearly. Properties of rock is another aspect for Obsidian vs Novaculite. The hardness of Obsidian is 5-5.5 and that of Novaculite is 7. The types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian whereas types of Novaculite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Obsidian is white while that of Novaculite is colorless. The specific heat capacity of Obsidian is 0.92 kJ/Kg K and that of Novaculite is 0.74 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Obsidian is heat resistant, impact resistant whereas Novaculite is heat resistant, impact resistant, pressure resistant, wear resistant.