Question

What is zypsum..........???​

Answer 1

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Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO₄·2H₂O.

It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard/sidewalk chalk, and drywall.

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Answer 2

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO₄·2H₂O.

It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard/sidewalk chalk, and drywall.

• Optical properties: Biaxial (+)
• Crystal class: Prismatic (2/m); H-M symbol: (2/m)
• Crystal system: Monoclinic
• Crystal habit: Massive, flat. Elongated and generally prismatic crystals
• Solubility: Hot, dilute HCl
• Alabaster: Fine-grained, slightly colored
• Mohs scale hardness: 1.5–2 (defining mineral for 2)