Civil Engineering - Building Materials - Discussion

4. 

Pick up the polymineralic rock from the following:

[A]. Quartz sand
[B]. Pure gypsum
[C]. Magnesite
[D]. Granite
[E]. None of these.

Answer: Option D

Explanation:

No answer description available for this question.

Swathi said: (May 17, 2013)  
An example of a monomineralic rock is quartzite, which is composed of only quartz. An example of a polymineralic rock is granite, which is typically composed of quartz, feldspar, and mica.

Manjupriya said: (Feb 20, 2014)  
Then what about Pure gypsum and Magnesite?

Shalu said: (Mar 28, 2014)  
Magnesite is a mineral not a rock and pure gypsum is also a mineral (composed of sulphate i.e. CaS04.2H20).

Quartzite is monomineralic consisting quartz, whereas granites have quartz, feldspar & mica.

Yadnesh said: (Sep 18, 2014)  
Polymineralic means having more than one mineral.

These rocks mainly consist of feldspar, quartz, mica, and amphibole minerals.

Rash said: (Jan 9, 2015)  
Composition of granite:

SiO2 72.04% (silica).
Al2O3 14.42% (alumina).
K2O 4.12%
Na2O 3.69%
CaO 1.82%
FeO 1.68%
Fe2O3 1.22%
MgO 0.71%
TiO2 0.30%
P2O5 0.12%
MnO 0.05%

Civilx said: (Mar 12, 2015)  
Granite consists of QUARTZ, MICA, FELDSPAR.

Venkatesh said: (Mar 20, 2015)  
Granite consists of Quartz, Mica, Feldspar.

Viswa said: (Jul 8, 2015)  
Granite is a material which is hard and durable so it is known as polymineralic.

Veerendra Kumar said: (Jul 27, 2015)  
Polymer rock is a very hard and durable.

Yuvaraj said: (Sep 15, 2015)  
Granite is an igneous Rock.

Alagucivil said: (Sep 19, 2015)  
What is quartz & mica?

Srinivas said: (Oct 12, 2015)  
This rock is formed due to solidification of magma below the earth surface.

Jyothi said: (Dec 19, 2015)  
Polymineralic rock means two or more minerals.

It consists of quartz, feldspar and mica.

Nawaz Ikram said: (Dec 24, 2015)  
Poly means more than 2 (bi) mineralic means composed mineral. Hence polymineralic rock means a rock composed of more than 2 minerals.

Composition of typical granite is Quartz, feldspar* and mica.

* is the most abundant mineral on the earth crust.

Bhavesh said: (Apr 30, 2016)  
Polymineralic means two are more mineral, which consists of one mineral.

Samim said: (Oct 2, 2016)  
What is the different between mineral and rock?

Imran said: (Oct 24, 2016)  
Gneiss, Basalt, Trape and feldspar rock.

Rony said: (Nov 6, 2016)  
Granite is the rock which is made of more than two minerals.

Sandeep Kamble said: (Nov 17, 2016)  
Which content present in granite & where excessive use of this, whether this is durable or not?

T.Ganai said: (Nov 19, 2016)  
An example of a monomineralic rock is quartzite, which is composed of only quartz.

An example of a polymineralic rock is granite, which is typically composed of quartz, feldspar, and mica. The three basic rock types are igneous, metamorphic, and sedimentary.

Lopamudra said: (Nov 29, 2016)  
Granite is a polymineralic rock.

Polymineralic rocks are complex as the various minerals within the rock have different deformational behaviours.

Jyoti said: (Jul 20, 2017)  
What is Monomineralic means?

Arti said: (Jul 20, 2017)  
What is the basic difference between monomineralic rock and polymineralic rock?

Kartikay said: (Aug 1, 2017)  
What is polyminelaric rock?

Rohith said: (Aug 11, 2017)  
What about magnesite?

Sandeep Maurya said: (Sep 13, 2017)  
An example of a monomineralic rock is quartzite, which is composed of only quartz. An example of a polymineralic rock is granite, which is typically composed of quartz, feldspar, and mica. The three basic rock types are igneous, metamorphic, and sedimentary.

Mahesh said: (Dec 25, 2017)  
What about the quartz sand?

Bhuvanesh said: (Jun 8, 2018)  
What is the polymeric rock?

Niraj Kumar said: (Jul 5, 2018)  
Quartz sand is mineral not a rock.

Sandip Sau said: (Jul 16, 2018)  
Monomineralic rock is quartzite and polymineralic rock is granite.

Emran Khan said: (Sep 3, 2018)  
Granite is a polymineralic rock because the main composition of granite is Sillica, mica, quarts.

So granite is polymineralic rock.

Dhana said: (Oct 18, 2018)  
Granite is a polyminerallic igneous rock which consists of minerals like quartz, feldspar and mica.

Mukesh Yadav said: (Jun 27, 2019)  
Granite = mica, felspar, quartz, amphibole.
Pure gypsum = only mineral of sulphates.
Magnesite = mineral which has nickel, iron, cobalt, manganese as an admixture.

Mahesh said: (Apr 7, 2020)  
It Consists of More than one rock.

Bhumika said: (Jul 21, 2020)  
What is the difference between minerals and rocks?

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