Scoria

Novaculite

Scoria vs Novaculite

Scoria

Novaculite

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1 Definition

1.1 Definition

Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities

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

1.2 History

1.2.1 Origin

Unknown

2.1.2 Discoverer

Unknown

2.2 Etymology

From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung

From Latin word novacula, for razor stone

2.3 Class

Igneous Rocks

Sedimentary Rocks

2.3.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

2.4 Family

2.4.1 Group

Volcanic

Not Applicable

2.5 Other Categories

Fine Grained Rock, Opaque Rock

3 Texture

3.1 Texture

Vesicular

Banded, Glassy, Rough, Vitreous

3.2 Color

Black, Brown, Dark Grey to Black, Red

Black, Brown, Green, Grey, Red, White

3.3 Maintenance

Less

3.4 Durability

Durable

3.4.1 Water Resistant

✔ ✘

3.4.2 Scratch Resistant

✔ ✘

3.4.3 Stain Resistant

✔ ✘

3.4.4 Wind Resistant

✔ ✘

3.4.5 Acid Resistant

✔ ✘

3.5 Appearance

Glassy and Vesicular

Glassy or Pearly

4 Uses

4.1 Architecture

4.1.1 Interior Uses

Decorative Aggregates, Interior Decoration

Countertops, Decorative Aggregates, Flooring, Interior Decoration

4.1.2 Exterior Uses

Garden Decoration, Paving Stone

As Building Stone, Garden Decoration

4.1.3 Other Architectural Uses

Curbing

4.2 Industry

4.2.1 Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, In landscaping and drainage works

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

4.2.2 Medical Industry

Not Yet Used

4.3 Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Monuments

4.4 Other Uses

4.4.1 Commercial Uses

As a traction material on snow-covered roads, Creating Artwork, High-temperature insulation, In gas barbecue grills

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

Not Available

5.2 Features

Available in Lots of Colors and Patterns, Generally rough to touch, Surfaces are often shiny

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

Used

5.3.2 Famous Monuments

Data Not Available

5.3.3 Sculpture

Used

Not Yet Used

5.3.4 Famous Sculptures

Data Not Available

Not Applicable

5.3.5 Pictographs

Used

Not Used

5.3.6 Petroglyphs

Used

Not Used

5.3.7 Figurines

Used

Not Yet Used

5.4 Fossils

Absent

Present

6 Formation

6.1 Formation

Scoria forms when magma containing huge amount of dissolved gas flows from a volcano during an eruption.

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.

6.2 Composition

6.2.1 Mineral Content

Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica

Quartz, Silicon

6.2.2 Compound Content

Ca, NaCl

Ca, Silicon Dioxide

6.3 Transformation

6.3.1 Metamorphism

✔ ✘

6.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Not Applicable

6.3.3 Weathering

✔ ✘

6.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Not Applicable

6.3.5 Erosion

✔ ✘

6.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

7 Properties

7.1 Physical Properties

7.1.1 Hardness

5-67

1 7

7.1.8 Grain Size

Fine Grained

7.1.9 Fracture

Conchoidal

7.1.10 Streak

White

Colorless

7.1.11 Porosity

Highly Porous

Less Porous

7.1.12 Luster

Subvitreous to Dull

Waxy and Dull

7.1.13 Compressive Strength

NA450.00 N/mm²

0.15 450

7.1.17 Cleavage

Perfect

Non-Existent

7.1.19 Toughness

2.1

1.5

7.1.20 Specific Gravity

Not Available2.5-2.7

0 8.4

7.1.22 Transparency

Opaque

Translucent to Opaque

7.1.23 Density

Not Available2.7 g/cm³

0 1400

7.3 Thermal Properties

7.3.1 Specific Heat Capacity

NA0.74 kJ/Kg K

0.14 3.2

8.1.3 Resistance

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

9.2.3 Africa

Ethiopia, Kenya, Tanzania

Kenya, Morocco, South Africa, Tanzania

9.3.2 Europe

Greece, Hungary, Iceland, Italy, Turkey

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

9.3.3 Others

Not Yet Found

Greenland, Mid-Atlantic Ridge

9.4 Deposits in Western Continents

9.4.1 North America

Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA

Canada, Mexico, USA

9.4.2 South America

Argentina, Chile, Ecuador, Peru

Bolivia, Brazil

9.5 Deposits in Oceania Continent

9.5.1 Australia

New Zealand, Western Australia

New South Wales, Queensland, South Australia, Western Australia

Scoria 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 Scoria and Novaculite Reserves. Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. 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 Scoria vs Novaculite information and Scoria vs Novaculite characteristics in the upcoming sections.

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Scoria 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. Scoria vs Novaculite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Scoria and Properties of Novaculite. Learn more about Scoria vs Novaculite in the next section. The interior uses of Scoria 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 Scoria and Novaculite, they have various applications in construction industry. The uses of Scoria in construction industry include Cement manufacture, Construction aggregate, For road aggregate, In landscaping and drainage works 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 Scoria and Novaculite

Here you can know more about Scoria and Novaculite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Scoria and Novaculite consists of mineral content and compound content. The mineral content of Scoria includes Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica and mineral content of Novaculite includes Quartz, Silicon. You can also check out the list of all Igneous Rocks. When we have to compare Scoria vs Novaculite, the texture, color and appearance plays an important role in determining the type of rock. Scoria is available in black, brown, dark grey to black, red colors whereas, Novaculite is available in black, brown, green, grey, red, white colors. Appearance of Scoria is Glassy and Vesicular and that of Novaculite is Glassy or Pearly. Properties of rock is another aspect for Scoria vs Novaculite. The hardness of Scoria is 5-6 and that of Novaculite is 7. The types of Scoria are Not Available 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 Scoria is white while that of Novaculite is colorless. The specific heat capacity of Scoria is Not Available 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.Scoria is heat resistant, impact resistant, pressure resistant, wear resistant whereas Novaculite is heat resistant, impact resistant, pressure resistant, wear resistant.