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Talc carbonate and Porphyry


Porphyry and Talc carbonate


Definition

Definition
Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.   
Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix   

History
  
  

Origin
China, USA, Middle east   
Egypt   

Discoverer
Unknown   
Unknown   

Etymology
From medieval Latin, talcum   
From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites   

Class
Metamorphic Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Soft Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture

Texture
Very Soft   
Porphyritic   

Color
Colourless, Grey, White   
Black, Brown, Colourless, Green, Grey, Red, Rust, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
No   
No   

Acid Resistant
No   
Yes   

Appearance
Soft   
Dull   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration   
Decorative Aggregates, Interior Decoration   

Exterior Uses
Garden Decoration   
Garden Decoration, Paving Stone   

Other Architectural Uses
Powder   
Curbing   

Industry
  
  

Construction Industry
Source of calcium   
Construction Aggregate   

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

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

Other Uses
  
  

Commercial Uses
Manufacturing of baby powder   
Creating Artwork, Gemstone, Jewelry   

Types

Types
Not Available   
Rhomb Porphyry   

Features
Easily splits into thin plates, Generally rough to touch, Host Rock for Lead   
Generally rough to touch, Is one of the oldest rock, Surfaces are often shiny   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Not Used   

Petroglyphs
Not Used   
Not Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Talc Carbonate is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.   
Porphyry is formed in two stages: the magma cools slowly deep within the crust or the magma is cools rapidly as it erupts from a volcano, creating small grains that are usually invisible to naked eye.   

Composition
  
  

Mineral Content
Carbonate, Chlorite, Magnesium   
Biotite, Chert, Feldspar, Garnet, Graphite, Quartz, Silica   

Compound Content
CaO, Carbon Dioxide, MgO   
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide   

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
No   
Yes   

Types of Weathering
Not Applicable   
Biological Weathering, Chemical Weathering, Not Registered   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Chemical Erosion, Coastal Erosion, Glacier Erosion   

Properties

Physical Properties
  
  

Hardness
1-2   
6-7   

Grain Size
Fine Grained   
Fine Grained   

Fracture
Flat   
Irregular   

Streak
White   
White   

Porosity
Less Porous   
Less Porous   

Luster
Pearly   
Dull   

Compressive Strength
250.00 N/mm2   
4
Not Available   

Cleavage
Perfect   
Imperfect   

Toughness
1   
1.7   

Specific Gravity
2.86   
2.5-4   

Transparency
Translucent   
Translucent to Opaque   

Density
2.8-2.9 g/cm3   
2.5-2.52 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
Not Available   

Resistance
Heat Resistant, Wear Resistant   
Heat Resistant, Impact Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Not Yet Found   
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam   

Africa
Ethiopia, Ghana, Western Africa   
Egypt, Ethiopia, Ghana, South Africa   

Europe
England   
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland   

Others
Not Yet Found   
Greenland   

Deposits in Western Continents
  
  

North America
Canada, USA   
Canada, Cuba, Jamaica, USA   

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

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Talc carbonate and Porphyry Properties

Know all about Talc carbonate and Porphyry properties here. All properties of rocks are important as they define the type of rock and its application. Talc carbonate belongs to Metamorphic Rocks while Porphyry belongs to Igneous Rocks.Texture of Talc carbonate is Very Soft whereas that of Porphyry is Porphyritic. Talc carbonate appears Soft and Porphyry appears Dull. The luster of Talc carbonate is pearly while that of Porphyry is dull. Talc carbonate is available in colourless, grey, white colors whereas Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors. The commercial uses of Talc carbonate are manufacturing of baby powder and that of Porphyry are creating artwork, gemstone, jewelry.

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