Definition
Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.
Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals
Origin
China, USA, Middle east
-
Discoverer
Unknown
R. J. Hauy
Etymology
From medieval Latin, talcum
From Greek pegma, pegmat which means- thing joined together + -ite
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
Texture
Very Soft
Pegmatitic
Color
Grey, White
Black, Brown, Cream, Green, Grey, Pink, Red, Rust, Silver, White, Yellow
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Soft
Layered, Banded, Veined and Shiny
Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Flooring, Interior Decoration
Exterior Uses
Garden Decoration
As Building Stone, As Facing Stone, Paving Stone
Other Architectural Uses
Powder
Curbing
Construction Industry
Source of calcium
As Dimension Stone, Building houses or walls, Construction Aggregate, for Road Aggregate, Landscaping
Medical Industry
Taken as a Supplement for Calcium or Magnesium
-
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
Artifacts, Sculpture, Small Figurines
Commercial Uses
Manufacturing of baby powder
Creating Artwork, Jewelry, Source of corundum, tourmalines, beryls and topaz
Types
Sedimentary rock
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite
Features
Easily splits into thin plates, Generally rough to touch, Host Rock for Lead
Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz
Archaeological Significance
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.
Pegmatite rock is holocrystalline, intrusive igneous rock which is formed by partial melting and dewatering during the process of metamorphism.
Mineral Content
Carbonate, Chlorite, Magnesium
Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz
Compound Content
CaO, Carbon Dioxide, MgO
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, Phosphorus Pentoxide
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
Types of Weathering
-
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
-
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Grain Size
Fine Grained
Medium to Coarse Grained
Porosity
Less Porous
Less Porous
Luster
Pearly
Grainy, Pearly and Vitreous
Specific Gravity
2.86
2.6-2.63
Transparency
Translucent
Translucent to Opaque
Density
2.8-2.9 g/cm3
2.6-2.65 g/cm3
Resistance
Heat Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant
Deposits in Eastern Continents
Asia
-
China, India, Iran, Japan, Nepal, North Korea, Russia, Saudi Arabia, South Korea
Africa
Ethiopia, Ghana, Western Africa
South Africa
Europe
England
Austria, France, Greece, Ireland, Italy, Netherlands, Slovakia, Spain, Turkey, Ukraine
Deposits in Western Continents
North America
Canada, USA
Canada
South America
Argentina, Bolivia, Uruguay
Brazil
Deposits in Oceania Continent
Australia
Central Australia, South Australia, Western Australia
New South Wales, Queensland, South Australia, Western Australia
All about Talc carbonate and Pegmatite Properties
Know all about Talc carbonate and Pegmatite 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 Pegmatite belongs to Igneous Rocks.Texture of Talc carbonate is Very Soft whereas that of Pegmatite is Pegmatitic. Talc carbonate appears Soft and Pegmatite appears Layered, Banded, Veined and Shiny. The luster of Talc carbonate is pearly while that of Pegmatite is grainy, pearly and vitreous. Talc carbonate is available in grey, white colors whereas Pegmatite is available in black, brown, cream, green, grey, pink, red, rust, silver, white, yellow colors. The commercial uses of Talc carbonate are manufacturing of baby powder and that of Pegmatite are creating artwork, jewelry, source of corundum, tourmalines, beryls and topaz.