Home
Compare Rocks


Lamprophyre and Tuff


Tuff and Lamprophyre


Definition

Definition
Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions   
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption   

History
  
  

Origin
Unknown   
Italy   

Discoverer
Unknown   
Unknown   

Etymology
From Greek lampros bright and shining + porphureos purple   
From a Latin word tophous then in Italian tufo and finally tuff   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Plutonic   
Volcanic   

Other Categories
Coarse Grained Rock, Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Porphyritic   
Clastic, Pyroclastic   

Color
Black, Bluish - Grey, Brown, Dark Greenish - Grey, Green, Grey   
Brown, Grey, Yellow   

Maintenance
Less   
More   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Dull, Banded and Foilated   
Dull, Vesicular and Foilated   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration   
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration   

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories   
Building houses or walls, Construction Aggregate   

Medical Industry
Taken as a Supplement for Calcium or Magnesium   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments, Sculpture   
Artifacts, Monuments, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)   
Creating Artwork   

Types

Types
Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite   
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.   

Features
Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny   
Always found as volcanic pipes over deep continental crust   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Easter Island in the Polynesian Triangle, Pacific Ocean   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Lamprophyre formation takes place deep beneath the Earth’s surface at around 150 to 450 kilometres, and are erupted rapidly and violently.   
Tuff is formed when large masses of ash and sand which are mixed with hot gases are ejected by a volcano and avalanche rapidly down its slopes.   

Composition
  
  

Mineral Content
Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene   
Calcite, Chlorite   

Compound Content
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide   
Hydrogen Sulfide, Sulfur Dioxide   

Transformation
  
  

Metamorphism
Yes   
Yes   

Types of Metamorphism
Cataclastic Metamorphism, Impact Metamorphism   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion   
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
5-6   
4-6   

Grain Size
Fine to Coarse Grained   
Fine Grained   

Fracture
Conchoidal   
Uneven   

Streak
White   
White   

Porosity
Very Less Porous   
Highly Porous   

Luster
Subvitreous to Dull   
Vitreous to Dull   

Compressive Strength
Not Available   
243.80 N/mm2   
5

Cleavage
Conchoidal   
Not Available   

Toughness
Not Available   
Not Available   

Specific Gravity
2.86-2.87   
2.73   

Transparency
Translucent to Opaque   
Opaque   

Density
2.95-2.96 g/cm3   
1-1.8 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.20 kJ/Kg K   
25

Resistance
Heat Resistant, Impact Resistant   
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Russia   
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen   

Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa   
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda   

Europe
England, Hungary, Iceland, United Kingdom   
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom   

Others
Antarctica, Greenland   
Antarctica, Hawaii Islands   

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA   
Canada, Costa Rica, Panama, USA   

South America
Argentina, Colombia, Ecuador   
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay   

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Lamprophyre and Tuff Properties

Know all about Lamprophyre and Tuff properties here. All properties of rocks are important as they define the type of rock and its application. Lamprophyre and Tuff belong to Igneous Rocks.Texture of Lamprophyre is Porphyritic whereas that of Tuff is Clastic, Pyroclastic. Lamprophyre appears Dull, Banded and Foilated and Tuff appears Dull, Vesicular and Foilated. The luster of Lamprophyre is subvitreous to dull while that of Tuff is vitreous to dull. Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Tuff is available in brown, grey, yellow colors. The commercial uses of Lamprophyre are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Tuff are creating artwork.

Compare Igneous Rocks

Igneous Rocks

Igneous Rocks

» More Igneous Rocks

Compare Igneous Rocks

» More Compare Igneous Rocks