Comendite

Shoshonite

Comendite and Shoshonite

Comendite

Shoshonite

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1 Definition

1.1 Definition

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

Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass

1.2 History

1.2.1 Origin

Italy

Wyoming,USA

1.2.2 Discoverer

Unknown

Iddings

1.3 Etymology

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

From the place of origin called Shoshone riverin Wyoming

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Volcanic

1.6 Other Categories

Medium Grained Rock, Opaque Rock

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

2 Texture

2.1 Texture

Porphyritic

2.2 Color

Blue, Bluish - Grey

Brown- Black, Dark Brown

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Foliated

Dull

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Countertops, Decorative Aggregates, Interior Decoration

Decorative Aggregates, Homes, Interior Decoration

3.1.2 Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration

As Building Stone, As Facing Stone

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

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

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts

Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

Cemetery Markers

Cemetery Markers, Creating Artwork

4 Types

4.1 Types

Rhyolite

Not Available

4.2 Features

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

Has High structural resistance against erosion and climate, Very fine grained rock

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

4.3.2 Famous Monuments

Not Applicable

4.3.3 Sculpture

Not Yet Used

Used

4.3.4 Famous Sculptures

Not Applicable

Data Not Available

4.3.5 Pictographs

Not Used

Used

4.3.6 Petroglyphs

Not Used

Used

4.3.7 Figurines

Not Yet Used

Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

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.

Shoshonite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms 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

Albite, Amphibole, Quartz

Pyroxene

5.2.2 Compound Content

Al, Fe, Potassium Oxide

Aluminium Oxide, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Titanium Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Cataclastic Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Coastal Erosion, Water Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

6-76

1 7

6.1.2 Grain Size

Medium Grained

Medium to Fine Coarse Grained

6.1.3 Fracture

Pervasive

Uneven

6.1.4 Streak

Bluish Black

White to Grey

6.1.5 Porosity

Highly Porous

Less Porous

6.1.6 Luster

Dull

6.1.7 Compressive Strength

92.40 N/mm²NA

0.15 450

6.1.8 Cleavage

Not Available

Poor

6.1.9 Toughness

1.6

6.1.10 Specific Gravity

2.382.98

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

Not Available2.9-3 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

NANA

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Pressure Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

China

India, Russia

7.1.2 Africa

East Africa

South Africa

7.1.3 Europe

Italy

Iceland

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Not Yet Found

Canada, USA

7.2.2 South America

Not Yet Found

Brazil

7.3 Deposits in Oceania Continent

7.3.1 Australia

Queensland

Not Yet Found

All about Comendite and Shoshonite Properties

Know all about Comendite and Shoshonite properties here. All properties of rocks are important as they define the type of rock and its application. Comendite and Shoshonite belong to Igneous Rocks.Texture of Comendite is Porphyritic whereas that of Shoshonite is Porphyritic. Comendite appears Foliated and Shoshonite appears Dull. The luster of Comendite and Shoshonite is dull. Comendite is available in blue, bluish - grey colors whereas Shoshonite is available in brown- black, dark brown colors. The commercial uses of Comendite are cemetery markers and that of Shoshonite are cemetery markers, creating artwork.