Definition
Marble is a non-foliated metamorphic rock which is composed of recrystallized carbonate which is formed when limestone is exposed to high temperatures and pressures over a long time
  
Rhomb-porphyry is a porphyritic igneous rock with abundant wedge or lens shaped anorthoclase or feldspar phenocrysts
  
History
  
  
Origin
Egypt
  
Unknown
  
Discoverer
Unknown
  
Unknown
  
Etymology
From the Greek marmaros, shining stone and also from the English word marmoreal meaning marble-like
  
From Latin term that means purple
  
Class
Metamorphic Rocks
  
Igneous Rocks
  
Sub-Class
Durable Rock, Medium Hardness Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Not Applicable
  
Volcanic
  
Other Categories
Medium Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Granular
  
Aphanitic to Porphyritic
  
Color
Black, Blue, Brown, Grey, Pink, White
  
Black, Brown, Colourless, Green, Grey, Pink, White
  
Maintenance
More
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
Yes
  
Yes
  
Scratch Resistant
Yes
  
No
  
Stain Resistant
Yes
  
Yes
  
Wind Resistant
No
  
Yes
  
Acid Resistant
No
  
No
  
Appearance
Veined and Shiny
  
Rough
  
Architecture
  
  
Interior Uses
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
  
Decorative Aggregates, Homes, Interior Decoration
  
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
  
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
  
Other Architectural Uses
Not Yet Used
  
Curbing
  
Industry
  
  
Construction Industry
As Dimension Stone
  
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
  
Artifacts, Monuments, Sculpture, Small Figurines
  
Other Uses
  
  
Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Laboratory bench tops, Paper Industry, Tombstones, Used in aquariums, Whiting material in toothpaste, paint and paper
  
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Metallurgical Flux, Soil Conditioner, Source of Magnesia (MgO)
  
Types
Breccia Marble, Carrara Marble, Calacatta marble, Cultured Marble, Polished Marble, Honed Marble, Sand Marble
  
Not Available
  
Features
Available in Lots of Colors and Patterns, Easily splits into thin plates, Generally rough to touch, Is one of the oldest rock
  
Host Rock for Lead
  
Archaeological Significance
  
  
Monuments
Used
  
Used
  
Famous Monuments
Al Aqsa Mosque in Jerusalem, Buland Darwaza in Agra, India, Capitol Hill Building, Washington DC, Charminar in Hyderabad, India, Chhatrapati Shivaji Terminus in Maharashtra, India, Ephesus in Turkey, Faisal Mosque in Islamabad, Pakistan, Humayun's Tomb in Delhi, India, Jama Masjid in Delhi, India, Lotus Temple in New Delhi, India, Louvre in Paris, France, Mysore Palace in Karnataka, India, Neuschwanstein in Bavaria, Palace of Parliament in Bucharest, Romania, Parthenon in Greece, Potala Palace in Lahasa, Tibet, Prophet’s Mosque in Medina, Qutb Minar in India, Saint Basil's Cathedral in Moscow, Russia, St. Peter’s Cathedral in Vatican City, Taj Mahal in Agra, India, Tower of Pisa, Italy, Victoria Memorial in Kolkata, India, Washington Monument, US
  
Data Not Available
  
Sculpture
Used
  
Used
  
Famous Sculptures
Ajanta Caves in Maharashtra, India, Bust of Artemis, Elephanta Caves in Maharashtra, India, Lincoln Memorial in America
  
Data Not Available
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Used
  
Used
  
Fossils
Absent
  
Absent
  
Formation
Marble is a metamorphic rock produced from limestone in the earth crust. It is formed by the metamorphism of limestone.
  
Rhomb-porphyry 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.
  
Composition
  
  
Mineral Content
Garnet, Graphite, Olivine, Pyrite, Quartz
  
Alkali feldspar, Biotite, Plagioclase, Pyroxene
  
Compound Content
CaO, Iron(III) Oxide, FeO, MgO, Silicon Dioxide
  
CaO, Cl, MgO
  
Transformation
  
  
Metamorphism
Yes
  
Yes
  
Types of Metamorphism
Impact Metamorphism
  
Impact Metamorphism
  
Weathering
Yes
  
Yes
  
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Coastal Erosion
  
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion
  
Physical Properties
  
  
Hardness
3-4
  
5-5.5
  
Grain Size
Medium Grained
  
Fine Grained
  
Fracture
Not Available
  
Conchoidal
  
Streak
White
  
White
  
Porosity
Less Porous
  
Very Less Porous
  
Luster
Dull to Pearly to Subvitreous
  
Subvitreous to Dull
  
Compressive Strength
115.00 N/mm2
  
18
310.00 N/mm2
  
2
Cleavage
Perfect
  
Perfect
  
Toughness
Not Available
  
2.7
  
Specific Gravity
2.86-2.87
  
2.86
  
Transparency
Opaque
  
Translucent
  
Density
2.4-2.7 g/cm3
  
2.8-2.9 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.88 kJ/Kg K
  
13
0.92 kJ/Kg K
  
10
Resistance
Heat Resistant
  
Heat Resistant, Pressure Resistant
  
Deposits in Eastern Continents
  
  
Asia
China, India
  
Not Yet Found
  
Africa
Namibia
  
Not Yet Found
  
Europe
Italy, Spain
  
Bulgaria
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
Not Yet Found
  
USA
  
South America
Not Yet Found
  
Not Yet Found
  
Deposits in Oceania Continent
  
  
Australia
New South Wales, New Zealand, Queensland, Victoria
  
Not Yet Found
  
All about Marble and Rhomb Porphyry Properties
Know all about Marble and Rhomb Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Marble belongs to Metamorphic Rocks while Rhomb Porphyry belongs to Igneous Rocks.Texture of Marble is Granular whereas that of Rhomb Porphyry is Aphanitic to Porphyritic. Marble appears Veined and Shiny and Rhomb Porphyry appears Rough. The luster of Marble is dull to pearly to subvitreous while that of Rhomb Porphyry is subvitreous to dull. Marble is available in black, blue, brown, grey, pink, white colors whereas Rhomb Porphyry is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Marble are cemetery markers, commemorative tablets, creating artwork, curling, laboratory bench tops, paper industry, tombstones, used in aquariums, whiting material in toothpaste, paint and paper and that of Rhomb Porphyry are an oil and gas reservoir, as a feed additive for livestock, metallurgical flux, soil conditioner, source of magnesia (mgo).