Jadeitite

Comendite

Jadeitite and Comendite

Jadeitite

Comendite

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1 Definition

1.1 Definition

Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains

Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite

1.2 History

1.2.1 Origin

Unknown

Italy

1.2.2 Discoverer

Unknown

1.3 Etymology

From pyroxene mineral jadeite

Comendite derives its name from the area of Le Commende on San Pietro Island in Italy

1.4 Class

Metamorphic Rocks

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Not Applicable

Volcanic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

Medium Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Earthy

Porphyritic

2.2 Color

Black, Brown, Colourless, Green, Grey, White

Blue, Bluish - Grey

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

81% Metamorphic Rocks Rocks have it !

✔ ✘

81% Igneous Rocks Rocks have it !

2.4.2 Scratch Resistant

✔ ✘

65% Metamorphic Rocks Rocks have it !

✔ ✘

86% Igneous Rocks Rocks have it !

2.4.3 Stain Resistant

✔ ✘

42% Metamorphic Rocks Rocks have it !

✔ ✘

66% Igneous Rocks Rocks have it !

2.4.4 Wind Resistant

✔ ✘

19% Metamorphic Rocks Rocks have it !

✔ ✘

49% Igneous Rocks Rocks have it !

2.4.5 Acid Resistant

✔ ✘

15% Metamorphic Rocks Rocks have it !

✔ ✘

48% Igneous Rocks Rocks have it !

2.5 Appearance

Rough and Dull

Foliated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Countertops, Decorative Aggregates, Interior Decoration

3.1.2 Exterior Uses

Garden Decoration, Office Buildings, Paving Stone

As Building Stone, As Facing Stone, Garden Decoration

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Cutting Tool, Knives

Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Raw material for the manufacture of mortar

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture

Artifacts

3.4 Other Uses

3.4.1 Commercial Uses

Commemorative Tablets, Creating Artwork, Jewelry

Cemetery Markers

4 Types

4.1 Types

Not Available

Rhyolite

4.2 Features

Host Rock for Lead

Very fine grained rock, It is One of the Oldest, Strongest and Hardest Rock

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Data Not Available

Not Applicable

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

Not Applicable

4.3.5 Pictographs

Used

Not Used

4.3.6 Petroglyphs

Used

Not Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Jadeitite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Comendite is a type of Igneous rock which is formed due to cooling and solidification of lava or magma. It may form with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

5.2 Composition

5.2.1 Mineral Content

Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides

Albite, Amphibole, Quartz

5.2.2 Compound Content

Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur

Al, Fe, Potassium Oxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

50% Metamorphic Rocks Rocks have it !

✔ ✘

97% Igneous Rocks Rocks have it !

5.3.2 Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Cataclastic Metamorphism, Regional Metamorphism

5.3.3 Weathering

✔ ✘

65% Metamorphic Rocks Rocks have it !

✔ ✘

99% Igneous Rocks Rocks have it !

5.3.4 Types of Weathering

Not Applicable

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

77% Metamorphic Rocks Rocks have it !

✔ ✘

92% Igneous Rocks Rocks have it !

5.3.6 Types of Erosion

Coastal Erosion, Water Erosion, Wind Erosion

Coastal Erosion, Water Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3-5

6-7

6.1.2 Grain Size

Very fine-grained

Medium Grained

6.1.3 Fracture

Uneven

Pervasive

6.1.4 Streak

White, Greenish White or Grey

Bluish Black

6.1.5 Porosity

Less Porous

Highly Porous

6.1.6 Luster

Waxy and Dull

Dull

6.1.7 Compressive Strength

What Is Flint

⊕

▶

▼

310.00 N/mm²

Rank: 2 (Overall)▶

92.40 N/mm²

Rank: 21 (Overall)▶

▲

What Is Obsidian

⊕

▶

175 (What Is Grani..)

◀ ▶ ADD ⊕

6.1.8 Cleavage

Irregular

Not Available

6.1.9 Toughness

6.1.10 Specific Gravity

2.79-3

2.38

6.1.11 Transparency

Opaque

6.1.12 Density

2.5-3 g/cm³

Not Available

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

What Is Banded ..

⊕

▶

▼

0.95 kJ/Kg K

Rank: 9 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

What Is Granulite

⊕

▶

1.09 (What Is Trave..)

◀ ▶ ADD ⊕

6.2.2 Resistance

Heat Resistant, Water Resistant

Heat Resistant, Impact Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Saudi Arabia, Singapore, South Korea

China

7.1.2 Africa

Ethiopia, Western Africa

East Africa

7.1.3 Europe

England, Georgia, Switzerland, United Kingdom

Italy

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada

Not Yet Found

7.2.2 South America

Colombia

Not Yet Found

7.3 Deposits in Oceania Continent

7.3.1 Australia

Central Australia, New South Wales, New Zealand, Western Australia

Queensland

All about Jadeitite and Comendite Properties

Know all about Jadeitite and Comendite properties here. All properties of rocks are important as they define the type of rock and its application. Jadeitite belongs to Metamorphic Rocks while Comendite belongs to Igneous Rocks.Texture of Jadeitite is Earthy whereas that of Comendite is Porphyritic. Jadeitite appears Rough and Dull and Comendite appears Foliated. The luster of Jadeitite is waxy and dull while that of Comendite is dull. Jadeitite is available in black, brown, colourless, green, grey, white colors whereas Comendite is available in blue, bluish - grey colors. The commercial uses of Jadeitite are commemorative tablets, creating artwork, jewelry and that of Comendite are cemetery markers.