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Trachyte
Trachyte

Pumice
Pumice



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Trachyte
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Trachyte and Pumice

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1 Definition
1.1 Definition
Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar
Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals
1.2 History
1.2.1 Origin
Unknown
Spain
1.2.2 Discoverer
Alexandre Brongniart and René Just Haüy
Unknown
1.3 Etymology
From Greek trakhus rough’ or trakhutēs roughness
From Old French pomis, from a Latin dialect variant of pumex
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Volcanic
Volcanic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Aphanitic to Porphyritic
Vesicular
2.2 Color
Black, Brown, Dark Greenish - Grey, Green, Grey, Light to Dark Grey, White
Beige, Colourless, Grey, Light Green, Light Grey, Pink, White, Yellow- grey
2.3 Maintenance
Less
Less
2.4 Durability
Durable
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
Banded
Vesicular
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Flooring, Homes, Interior Decoration
Decorative Aggregates, Flooring, Homes, Interior Decoration
1.1.1 Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
1.1.2 Other Architectural Uses
Curbing
Curbing, Powder
1.3 Industry
1.3.1 Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
As Dimension Stone, Cement Manufacture, for Road Aggregate, In landscaping and horticulture, Making natural cement, Production of lightweight concrete blocks
1.3.3 Medical Industry
Not Yet Used
As an abrasive in skin exfoliating products, In Chemical and Pharmaceutical Industry, Medicines and Cosmetics
1.5 Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts
1.6 Other Uses
1.6.1 Commercial Uses
Cemetery Markers, Creating Artwork
As a traction material on snow-covered roads, As an abrasive in pencil erasers, Fine abrasive used for polishing, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Used in aquariums
2 Types
2.1 Types
Not Available
Scoria
2.2 Features
Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable
Host Rock for Lead
2.3 Archaeological Significance
2.4.2 Monuments
Used
Not Yet Used
2.4.3 Famous Monuments
Data Not Available
Not Applicable
2.5.1 Sculpture
Used
Not Yet Used
3.1.1 Famous Sculptures
Data Not Available
Not Applicable
3.2.1 Pictographs
Used
Used
3.3.1 Petroglyphs
Used
Used
3.4.1 Figurines
Used
Not Yet Used
3.5 Fossils
Absent
Absent
4 Formation
4.1 Formation
Trachyte is an igneous volcanic rock with an aphanitic to porphyritic texture. It is the volcanic equivalent of syenite rock and forms as a result of magmatic differentiation.
Pumice rock forms when the magma cools so quickly that atoms in the melt are not able to arrange themselves into a crystalline structure.
4.2 Composition
4.2.1 Mineral Content
Augite, Biotite, Feldspar, Hornblade, Plagioclase, Quartz
Aluminum Oxides, Calcite, Carbonate, Iron Oxides, Silica
4.2.3 Compound Content
Potassium Oxide, Sodium Oxide, Silicon Dioxide
Al, Aluminium Oxide, CaO, Carbon Dioxide, MgO, Silicon Dioxide
4.3 Transformation
4.3.2 Metamorphism
4.3.3 Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Burial Metamorphism, Impact Metamorphism
4.3.5 Weathering
4.4.1 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
4.4.2 Erosion
5.1.2 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
66
Coal
1 7
9.1.2 Grain Size
Fine Grained
Fine Grained
9.1.3 Fracture
Not Available
Planar
9.1.4 Streak
White
White, Greenish White or Grey
9.1.5 Porosity
Less Porous
Highly Porous
9.1.6 Luster
Metallic
Earthy
9.1.7 Compressive Strength
150.00 N/mm251.20 N/mm2
What Is Obsidian
0.15 450
9.1.14 Cleavage
Not Available
Perfect
9.1.15 Toughness
Not Available
3
9.1.16 Specific Gravity
2.72.86
Granite
0 8.4
9.1.17 Transparency
Opaque
Opaque
9.1.18 Density
2.43-2.45 g/cm30.25-0.3 g/cm3
Granite
0 1400
9.2 Thermal Properties
9.2.1 Specific Heat Capacity
NA0.87 kJ/Kg K
What Is Granulite
0.14 3.2
9.3.2 Resistance
Heat Resistant, Impact Resistant, Wear Resistant
Impact Resistant, Pressure Resistant
10 Reserves
10.1 Deposits in Eastern Continents
10.1.1 Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afghanistan, Indonesia, Japan, Russia
10.1.2 Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Ethiopia, Kenya, Tanzania
10.1.3 Europe
Bulgaria, England, Germany, Norway, Romania, Switzerland
Greece, Hungary, Iceland, Italy, Turkey
10.1.4 Others
Not Yet Found
Not Yet Found
10.2 Deposits in Western Continents
10.2.1 North America
USA
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA
10.2.2 South America
Brazil, Chile
Argentina, Chile, Ecuador, Peru
10.3 Deposits in Oceania Continent
10.3.1 Australia
New Zealand, Queensland, South Australia, Western Australia
New Zealand, Western Australia

All about Trachyte and Pumice Properties

Know all about Trachyte and Pumice properties here. All properties of rocks are important as they define the type of rock and its application. Trachyte and Pumice belong to Igneous Rocks.Texture of Trachyte is Aphanitic to Porphyritic whereas that of Pumice is Vesicular. Trachyte appears Banded and Pumice appears Vesicular. The luster of Trachyte is metallic while that of Pumice is earthy. Trachyte is available in black, brown, dark greenish - grey, green, grey, light to dark grey, white colors whereas Pumice is available in beige, colourless, grey, light green, light grey, pink, white, yellow- grey colors. The commercial uses of Trachyte are cemetery markers, creating artwork and that of Pumice are as a traction material on snow-covered roads, as an abrasive in pencil erasers, fine abrasive used for polishing, manufacture of soap, solvents, dyes, plastics and fibres, used in aquariums.