Saponite

Saponite is a monoclinic mineral of the montmorillonite group. Its chemical formula is (½Ca,Na)0.33(Mg,Fe+2)3(Si,Al)4O10(OH)2·4H2O.It is soft, massive, and plastic, and exists in veins and cavities in serpentinite and basalt. The name is derived from the Greek sapo, soap. Other names include bowlingite; mountain soap; piotine; soapstone.
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(n.)
A hydrous silicate of magnesia and alumina. It occurs in soft, soapy, amorphous masses, filling veins in serpentine and cavities in trap rock.
  

General Information:
 Chemical Formula:
(Ca/2,Na)0,3(Mg,Fe++)3(Si,Al)4O10(OH)2·4(H2O)
 Composition:
(Molecular Weight = 480.19 gm)
Sodium 0.48 % Na
Calcium 0.83 % Ca
Magnesium 11.39 % Mg
Aluminum 5.62 % Al
Iron 8.72 % Fe
Silicon 17.55 % Si
Hydrogen 2.10 % H 
Oxygen 53.31 % O 
 Empirical Formula:
Ca0.1Na0.1Mg2.25Fe2+0.75Si3AlO10(OH)2·4(H2O)
 Environment:
Amygdaloidal cavities in basalts.
 Locality:
Lizard Head in Cornwall, England.
 Name Origin:
From the Latin, sapo meaning "soap.'
Physical Properties:
 Cleavage:
[001] Perfect
 Color:
white, yellowish white, greenish white, reddish white, or bluish white.
 Density:
2.3
 Diaphaniety:
Subtranslucent to opaque
 Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Granular - Generally occurs as anhedral to subhedral crystals in matrix.,
 Hardness:
1.5-2 - Talc-Gypsum
 Luminescence:
None.
 Luster:
Earthy (Dull)
 Streak:
white
More details...

B: (Kimia) saponit
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Eng: saponite
Urdu: (مَعدنِیات) سَپونائٹ ۔ مَگنیشِیَم ایلومینَم سِیلیکیٹ ۔