Definition
Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.
  
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
  
History
  
  
Origin
China, USA, Middle east
  
Romania and Moldova, Europe
  
Discoverer
Unknown
  
Unknown
  
Etymology
From medieval Latin, talcum
  
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
  
Class
Metamorphic Rocks
  
Igneous Rocks
  
Sub-Class
Durable Rock, Soft Rock
  
Durable Rock, Soft Rock
  
Family
  
  
Group
Not Applicable
  
Volcanic
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Medium Grained Rock, Opaque Rock
  
Texture
Very Soft
  
Aphanitic to Porphyritic
  
Color
Colourless, Grey, White
  
Bluish - Grey, Brown, Grey, Light to Dark Grey
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
Yes
  
No
  
Scratch Resistant
Yes
  
No
  
Stain Resistant
No
  
No
  
Wind Resistant
No
  
No
  
Acid Resistant
No
  
No
  
Appearance
Soft
  
Vesicular
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Interior Decoration
  
Decorative Aggregates, Entryways, Interior Decoration
  
Exterior Uses
Garden Decoration
  
As Building Stone, Paving Stone, Garden Decoration
  
Other Architectural Uses
Powder
  
Curbing
  
Industry
  
  
Construction Industry
Source of calcium
  
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping
  
Medical Industry
Taken as a Supplement for Calcium or Magnesium
  
Not Yet Used
  
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
  
Artifacts
  
Other Uses
  
  
Commercial Uses
Manufacturing of baby powder
  
Commemorative Tablets, Creating Artwork
  
Types
Not Available
  
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite
  
Features
Easily splits into thin plates, Generally rough to touch, Host Rock for Lead
  
Host Rock for Lead, Is one of the oldest rock
  
Archaeological Significance
  
  
Monuments
Used
  
Not Yet Used
  
Famous Monuments
Data Not Available
  
Not Applicable
  
Sculpture
Used
  
Not Yet Used
  
Famous Sculptures
Data Not Available
  
Not Applicable
  
Pictographs
Used
  
Used
  
Petroglyphs
Not Used
  
Used
  
Figurines
Used
  
Not Yet Used
  
Fossils
Absent
  
Absent
  
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.
  
Dacitic magma is formed by the subduction of young oceanic crust under a thick felsic continental plate. Further, the Oceanic crust is hydrothermally altered as quartz and sodium are added.
  
Composition
  
  
Mineral Content
Carbonate, Chlorite, Magnesium
  
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon
  
Compound Content
CaO, Carbon Dioxide, MgO
  
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide
  
Transformation
  
  
Metamorphism
Yes
  
Yes
  
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism
  
Burial Metamorphism, Cataclastic Metamorphism
  
Weathering
No
  
Yes
  
Types of Weathering
Not Applicable
  
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Erosion
No
  
Yes
  
Types of Erosion
Not Applicable
  
Chemical Erosion
  
Physical Properties
  
  
Hardness
1-2
  
2-2.25
  
Grain Size
Fine Grained
  
Medium to Fine Coarse Grained
  
Fracture
Flat
  
Conchoidal
  
Streak
White
  
White
  
Porosity
Less Porous
  
Less Porous
  
Luster
Pearly
  
Subvitreous to Dull
  
Compressive Strength
250.00 N/mm
2
  
4
Not Available
  
Cleavage
Perfect
  
Perfect
  
Toughness
1
  
Not Available
  
Specific Gravity
2.86
  
2.86-2.87
  
Transparency
Translucent
  
Translucent
  
Density
2.8-2.9 g/cm3
  
2.77-2.771 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.92 kJ/Kg K
  
10
0.92 kJ/Kg K
  
10
Resistance
Heat Resistant, Wear Resistant
  
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
  
Deposits in Eastern Continents
  
  
Asia
Not Yet Found
  
Not Yet Found
  
Africa
Ethiopia, Ghana, Western Africa
  
Not Yet Found
  
Europe
England
  
France, Greece, Romania, Scotland, Spain
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
Canada, USA
  
USA
  
South America
Argentina, Bolivia, Uruguay
  
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
  
Deposits in Oceania Continent
  
  
Australia
Central Australia, South Australia, Western Australia
  
New Zealand, South Australia, Western Australia
  
Talc carbonate vs Dacite Characteristics
Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Talc carbonate vs Dacite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Talc carbonate and Properties of Dacite. Learn more about Talc carbonate vs Dacite in the next section. The interior uses of Talc carbonate include Decorative aggregates and Interior decoration whereas the interior uses of Dacite include Decorative aggregates, Entryways and Interior decoration. Due to some exceptional properties of Talc carbonate and Dacite, they have various applications in construction industry. The uses of Talc carbonate in construction industry include Source of calcium and that of Dacite include As dimension stone, Construction aggregate, For road aggregate, Landscaping.
More about Talc carbonate and Dacite
Here you can know more about Talc carbonate and Dacite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Talc carbonate and Dacite consists of mineral content and compound content. The mineral content of Talc carbonate includes Carbonate, Chlorite, Magnesium and mineral content of Dacite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon. You can also check out the list of all Metamorphic Rocks. When we have to compare Talc carbonate vs Dacite, the texture, color and appearance plays an important role in determining the type of rock. Talc carbonate is available in colourless, grey, white colors whereas, Dacite is available in bluish - grey, brown, grey, light to dark grey colors. Appearance of Talc carbonate is Soft and that of Dacite is Vesicular. Properties of rock is another aspect for Talc carbonate vs Dacite. The hardness of Talc carbonate is 1-2 and that of Dacite is 2-2.25. The types of Talc carbonate are Not Available whereas types of Dacite are Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Talc carbonate and Dacite is white. The specific heat capacity of Talc carbonate is 0.92 kJ/Kg K and that of Dacite is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Talc carbonate is heat resistant, wear resistant whereas Dacite is heat resistant, impact resistant, pressure resistant, wear resistant.