Oolite

Rapakivi Granite

Oolite and Rapakivi Granite

Oolite

Rapakivi Granite

Add ⊕

Definition

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

Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase

History

Origin

Finland, Europe

Discoverer

William Smith

Jakob Sederholm

Etymology

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

From Finnish Rapakivi which stands for crumbly rock

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Clastic or Non-Clastic

Granular, Phaneritic

Color

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

Black, Grey, Orange, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rounded and Rough

Veined or Pebbled

Uses

Architecture

Interior Uses

Decorative Aggregates, Flooring, Interior Decoration

Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads

Exterior Uses

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

As Building Stone, As Facing Stone, Office Buildings, Paving Stone, Resorts

Other Architectural Uses

Industry

Construction Industry

Cement Manufacture, Cobblestones, Landscaping

As Dimension Stone

Medical Industry

Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Creating Artwork, Jewelry, Used in aquariums

Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Laboratory bench tops, Tombstones

Types

Pisolitic Oolite and Oncolitic Oolite

Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite and Hybrid Granite

Features

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

Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

Formation

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.

Granite is an igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks

Composition

Mineral Content

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

Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz

Compound Content

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

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3-46-7

1 7

👆🏻

Grain Size

Fine Grained

Large and Coarse Grained

Fracture

Conchoidal

Streak

White

Porosity

Less Porous

Luster

Pearly to Shiny

Dull to Grainy with Sporadic parts Pearly and Vitreous

Compressive Strength

40.00 N/mm²175.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

-99992.6-2.7

0 8.4

👆🏻

Transparency

Opaque

Density

-9999 g/cm³2.6-2.8 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.65 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

Africa

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

Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Europe

United Kingdom

Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic

Others

Deposits in Western Continents

North America

USA

Canada, USA

South America

Colombia

Deposits in Oceania Continent

Australia

Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula

All about Oolite and Rapakivi Granite Properties

Know all about Oolite and Rapakivi Granite properties here. All properties of rocks are important as they define the type of rock and its application. Oolite belongs to Sedimentary Rocks while Rapakivi Granite belongs to Igneous Rocks.Texture of Oolite is Clastic or Non-Clastic whereas that of Rapakivi Granite is Granular, Phaneritic. Oolite appears Rounded and Rough and Rapakivi Granite appears Veined or Pebbled. The luster of Oolite is pearly to shiny while that of Rapakivi Granite is dull to grainy with sporadic parts pearly and vitreous. Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors whereas Rapakivi Granite is available in black, grey, orange, pink, white colors. The commercial uses of Oolite are creating artwork, jewelry, used in aquariums and that of Rapakivi Granite are cemetery markers, commemorative tablets, creating artwork, curling, laboratory bench tops, tombstones.