×

Novaculite
Novaculite

Adakite
Adakite



ADD
Compare
X
Novaculite
X
Adakite

Novaculite vs Adakite

Definition

Definition

Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture
Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs

History

Origin

-
Adak, Aleutian Islands

Discoverer

Unknown
Defant and Drummond

Etymology

From Latin word novacula, for razor stone
From Adak, Aleutian Islands

Class

Sedimentary Rocks
Igneous Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock

Family

Group

-
Volcanic

Other Categories

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

Texture

Texture

Banded, Glassy, Rough, Vitreous
Porphyritic

Color

Black, Brown, Green, Grey, Red, White
Black, Brown, Light to Dark Grey

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Glassy or Pearly
Dull and Soft

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Flooring, Interior Decoration
Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

Exterior Uses

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

Other Architectural Uses

Curbing
Whetstones

Industry

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
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

Medical Industry

-
-

Antiquity Uses

Artifacts, Monuments
Monuments, Sculpture, Small Figurines

Other Uses

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
Commemorative Tablets, Pottery, Used in aquariums

Types

Types

Sedimentary rock
Intermediate volcanic rock

Features

Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate
Has High structural resistance against erosion and climate, Host rock for Diamond, Very fine grained rock

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

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.
Adakite rocks are formed when the hydrous fluids are released from minerals that break down in metamorphosed basalt, and rise into the mantle they initiate partial melting.

Composition

Mineral Content

Quartz, Silicon
Olivine, Plagioclase, Pyroxene

Compound Content

Ca, Silicon Dioxide
Aluminium Oxide, MgO, Silicon Dioxide

Transformation

Metamorphism

Types of Metamorphism

-
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

-
Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion
Coastal Erosion, Sea Erosion, Water Erosion

Properties

Physical Properties

Hardness

73-4
1 7
👆🏻

Grain Size

Fine Grained
Fine to Medium Grained

Fracture

Conchoidal
Conchoidal

Streak

-
Bluish Black

Porosity

Less Porous
Less Porous

Luster

Waxy and Dull
Grainy, Pearly and Vitreous

Compressive Strength

450.00 N/mm2200.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

1.5
-

Specific Gravity

2.5-2.7-9999
0 8.4
👆🏻

Transparency

Translucent to Opaque
Opaque

Density

2.7 g/cm3-9999 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.74 kJ/Kg K0.84 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

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

Africa

Kenya, Morocco, South Africa, Tanzania
Ethiopia, Somalia, South Africa

Europe

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

Others

Greenland, Mid-Atlantic Ridge
-

Deposits in Western Continents

North America

Canada, Mexico, USA
Canada, USA

South America

Bolivia, Brazil
Brazil

Deposits in Oceania Continent

Australia

New South Wales, Queensland, South Australia, Western Australia
-

Novaculite vs Adakite 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 Novaculite and Adakite Reserves. Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture. Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs. 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 Novaculite vs Adakite information and Novaculite vs Adakite characteristics in the upcoming sections.

Novaculite vs Adakite 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. Novaculite vs Adakite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Novaculite and Properties of Adakite. Learn more about Novaculite vs Adakite in the next section. The interior uses of Novaculite include Countertops, Decorative aggregates, Flooring and Interior decoration whereas the interior uses of Adakite include Decorative aggregates, Floor tiles, Homes, Hotels and Kitchens. Due to some exceptional properties of Novaculite and Adakite, they have various applications in construction industry. The uses of Novaculite in construction industry 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 and that of Adakite include As dimension stone, Cobblestones, Rail track ballast, Roadstone.

More about Novaculite and Adakite

Here you can know more about Novaculite and Adakite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Novaculite and Adakite consists of mineral content and compound content. The mineral content of Novaculite includes Quartz, Silicon and mineral content of Adakite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Sedimentary Rocks. When we have to compare Novaculite vs Adakite, the texture, color and appearance plays an important role in determining the type of rock. Novaculite is available in black, brown, green, grey, red, white colors whereas, Adakite is available in black, brown, light to dark grey colors. Appearance of Novaculite is Glassy or Pearly and that of Adakite is Dull and Soft. Properties of rock is another aspect for Novaculite vs Adakite. The hardness of Novaculite is 7 and that of Adakite is 3-4. The types of Novaculite are Sedimentary rock whereas types of Adakite are Intermediate volcanic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Novaculite is while that of Adakite is bluish black. The specific heat capacity of Novaculite is 0.74 kJ/Kg K and that of Adakite 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.Novaculite is heat resistant, impact resistant, pressure resistant, wear resistant whereas Adakite is heat resistant, pressure resistant, wear resistant.