Flint

Oolite

Flint and Oolite

Flint

Oolite

Add ⊕

Definition

Flint is a hard type of sedimentary rock that produces a small piece of burning material when hit by steel

Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite

History

Origin

Discoverer

Unknown

William Smith

Etymology

From Old English flint - a type of rock mainly known for high hardness and for giving off sparks when struck

From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Banded, Rough

Clastic or Non-Clastic

Color

Black, Brown, Green, Grey, Red, White

Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Glassy or Pearly

Rounded and Rough

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

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

As Building Stone, As Facing Stone, Garden Decoration, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

Arrowheads, Cutting Tool, Spear Points

Cement Manufacture, Cobblestones, Landscaping

Medical Industry

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Creating Artwork, Gemstone, In fire-starting tools, Manufacture of tools, Metallurgical Flux, Jewelry, To ignite fire, Used in flintlock firearms

Creating Artwork, Jewelry, Used in aquariums

Types

Chert and Jasper

Pisolitic Oolite and Oncolitic Oolite

Features

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

Available in lots of colors, Generally rough to touch, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Formation

Flint is formed by the decomposition and compaction of various organisms such as sponges and diatoms under the water.

Oolites form when layers of calcite are deposited around a sand grain or fossil piece and are rolled around in calm water, which makes them round.

Composition

Mineral Content

Silicon

Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt

Compound Content

Silicon Dioxide

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

Chemical Erosion, Coastal Erosion

Properties

Physical Properties

Hardness

73-4

1 7

👆🏻

Grain Size

Very fine-grained

Fine Grained

Fracture

Conchoidal

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Vitreous

Pearly to Shiny

Compressive Strength

450.00 N/mm²40.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.5

Specific Gravity

2.5-2.8-9999

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.7-2.71 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.74 kJ/Kg K0.65 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Azerbaijan, China, Russia

Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam

Africa

Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe

Europe

Austria, Belgium, Cyprus, Denmark, France, Germany, Italy, Malta, Netherlands, Poland, Portugal, Romania, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom

United Kingdom

Others

Deposits in Western Continents

North America

USA

South America

Bolivia

Colombia

Deposits in Oceania Continent

Australia

New Zealand, South Australia

Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula

All about Flint and Oolite Properties

Know all about Flint and Oolite properties here. All properties of rocks are important as they define the type of rock and its application. Flint and Oolite belong to Sedimentary Rocks.Texture of Flint is Banded, Rough whereas that of Oolite is Clastic or Non-Clastic. Flint appears Glassy or Pearly and Oolite appears Rounded and Rough. The luster of Flint is vitreous while that of Oolite is pearly to shiny. Flint is available in black, brown, green, grey, red, white colors whereas Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors. The commercial uses of Flint are creating artwork, gemstone, in fire-starting tools, manufacture of tools, metallurgical flux, jewelry, to ignite fire, used in flintlock firearms and that of Oolite are creating artwork, jewelry, used in aquariums.