BANDAR KAS GYPSUM:
When we cover some distance in khewra gorge here we study the Bandar khas gypsum.it is difficult to determine that this is gypsum because it same like salt crystal but we use two methods to determine it.it make its determination .the both method are given below
1. Test: if we test it with tong and they give salty test then it will be the salt and if not then it will be the gypsum
2. Hardness: if we rubbing it with nil and it can’t screech then it will be not gypsum it screech then it will be gypsum because the hardness of gypsum is”2” and the hardness of the nil is 2.5 so the nil must be screech it.
Environment: tidal plate.
GYPSUM:
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O.[3] It can be used as a fertilizer, is the main constituent in many forms of plaster and is widely mined. A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, Byzantine empire and the Nottingham alabasters of medieval England. It is the definition of a hardness of 2 on the Mohs scale of mineral hardness. It forms as an evaporite mineral and as a hydration product of anhydrite.
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When we cover some distance in khewra gorge here we study the Bandar khas gypsum.it is difficult to determine that this is gypsum because it same like salt crystal but we use two methods to determine it.it make its determination .the both method are given below
1. Test: if we test it with tong and they give salty test then it will be the salt and if not then it will be the gypsum
2. Hardness: if we rubbing it with nil and it can’t screech then it will be not gypsum it screech then it will be gypsum because the hardness of gypsum is”2” and the hardness of the nil is 2.5 so the nil must be screech it.
Environment: tidal plate.
GYPSUM:
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O.[3] It can be used as a fertilizer, is the main constituent in many forms of plaster and is widely mined. A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, Byzantine empire and the Nottingham alabasters of medieval England. It is the definition of a hardness of 2 on the Mohs scale of mineral hardness. It forms as an evaporite mineral and as a hydration product of anhydrite.
www.geologyofpakistan.blogspot.com
www.facebook.com/geologyofpakistan
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