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Gypsum vs. Lime: What's the Difference?

Edited by Huma Saeed || By Sawaira Riaz || Published on January 16, 2024
Gypsum is a soft sulfate mineral used in construction and agriculture, while lime, derived from limestone, is used in agriculture, construction, and water treatment.

Key Differences

Gypsum is a mineral composed of calcium sulfate dihydrate. Lime is a general term for several calcium-containing compounds, primarily calcium oxide or calcium hydroxide.
Sawaira Riaz
Jan 16, 2024
Gypsum is widely used in the construction industry for plaster and drywall. Lime is used to adjust soil pH, in cement, and as a water treatment agent.
Sawaira Riaz
Jan 16, 2024
Gypsum is known for its softness and can be easily scratched. Lime, in contrast, exhibits caustic properties and can be corrosive.
Huma Saeed
Jan 16, 2024
Gypsum forms from the evaporation of sea water and is often found in sedimentary rock layers. Lime is produced by heating limestone or other sources of calcium carbonate.
Aimie Carlson
Jan 16, 2024
Gypsum can improve soil structure and is a natural source of calcium and sulfur. Lime can enhance soil fertility but may raise concerns about CO2 emissions during production.
Harlon Moss
Jan 16, 2024
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Comparison Chart

Chemical Formula

CaSO4·2H2O
CaO (quicklime), Ca(OH)2 (hydrated lime)
Sawaira Riaz
Jan 16, 2024

Hardness

Soft, can be scratched by a fingernail
Harder, can be corrosive
Huma Saeed
Jan 16, 2024

PH Effect

Neutral
Alkaline, raises soil pH
Sawaira Riaz
Jan 16, 2024

Common Use

Drywall, plastering, soil amendment
Soil amendment, cement, water treatment
Aimie Carlson
Jan 16, 2024

Environmental

Improves soil structure, natural mineral
Can emit CO2 during production
Aimie Carlson
Jan 16, 2024
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Gypsum and Lime Definitions

Gypsum

Gypsum is a soft mineral used in plaster.
The wall was made sturdy using gypsum-based plaster.
Janet White
Dec 12, 2023

Lime

Lime is used to balance soil pH.
To reduce soil acidity, the gardener applied lime.
Huma Saeed
Dec 12, 2023

Gypsum

Gypsum is a source of calcium and sulfur for plants.
The farmer used gypsum as a fertilizer for better yields.
Janet White
Dec 12, 2023

Lime

Lime treats water to remove impurities.
The water treatment plant uses lime for purification.
Sawaira Riaz
Dec 12, 2023

Gypsum

Gypsum is essential in drywall manufacturing.
The new house features walls made from gypsum drywall.
Sawaira Riaz
Dec 12, 2023

Lime

Lime is a key ingredient in cement.
The construction of the sidewalk involved mixing lime with other materials.
Aimie Carlson
Dec 12, 2023

Gypsum

Gypsum is used in sculpting and art.
The artist sculpted a beautiful statue from a block of gypsum.
Aimie Carlson
Dec 12, 2023

Lime

Lime is calcium oxide or hydroxide.
In chemistry class, we studied the properties of lime.
Janet White
Dec 12, 2023

Gypsum

Gypsum improves soil structure.
Adding gypsum to the garden enhances plant growth.
Sawaira Riaz
Dec 12, 2023

Lime

Lime is used in environmental applications.
Lime helps in reducing soil erosion in vulnerable areas.
Harlon Moss
Dec 12, 2023

Gypsum

A widespread colorless, white, or yellowish mineral, CaSO4·2H2O, used in the manufacture of plaster of Paris, various plaster products, and fertilizers.
Sawaira Riaz
Dec 11, 2023

Lime

Any of several evergreen trees or shrubs of the genus Citrus having edible green or greenish-yellow fruit, especially the Mexican lime and the Persian lime.
Sawaira Riaz
Dec 11, 2023

Gypsum

A mineral consisting of hydrated calcium sulphate. When calcinated, it forms plaster of Paris.
Sawaira Riaz
Dec 11, 2023

Lime

The fruit of any of these plants, having a pulpy interior and usually acid juice.
Sawaira Riaz
Dec 11, 2023

Gypsum

A mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety.
Sawaira Riaz
Dec 11, 2023

Gypsum

A common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
Sawaira Riaz
Dec 11, 2023

FAQs

What is gypsum?

Gypsum is a soft sulfate mineral, commonly used in construction and agriculture.
Sawaira Riaz
Jan 16, 2024

What is lime?

Lime refers to calcium-containing compounds, used in various industries like agriculture and construction.
Huma Saeed
Jan 16, 2024

How is gypsum used in agriculture?

In agriculture, gypsum serves as a soil amendment and provides essential nutrients.
Sawaira Riaz
Jan 16, 2024

Can gypsum be used in making sculptures?

Yes, gypsum is often used for artistic sculptures and decorative elements.
Sawaira Riaz
Jan 16, 2024

What are the environmental benefits of lime?

Lime improves soil health and is used in environmental remediation.
Aimie Carlson
Jan 16, 2024

Is lime harmful to humans?

In its caustic form, lime can be harmful if not handled properly.
Janet White
Jan 16, 2024

How does lime affect soil pH?

Lime raises the pH level of soil, making it less acidic.
Sawaira Riaz
Jan 16, 2024

Is gypsum used in food?

Gypsum is used in food as a coagulant in products like tofu.
Sawaira Riaz
Jan 16, 2024

Is gypsum biodegradable?

Being a natural mineral, gypsum is environmentally friendly and does not cause pollution.
Janet White
Jan 16, 2024

Can lime be used in fire safety?

Lime is used in fire-resistant building materials.
Aimie Carlson
Jan 16, 2024

What is the main chemical component of gypsum?

Gypsum primarily consists of calcium sulfate dihydrate.
Sawaira Riaz
Jan 16, 2024

Is lime renewable?

Lime is derived from limestone, a non-renewable resource, but is abundant.
Sawaira Riaz
Jan 16, 2024

Does gypsum affect water retention in soil?

Gypsum improves water retention and soil structure.
Janet White
Jan 16, 2024

How does lime contribute to carbon footprint?

The production of lime can contribute to CO2 emissions, impacting the carbon footprint.
Janet White
Jan 16, 2024

What are the construction uses of gypsum?

Gypsum is widely used in drywall, plaster, and wallboard.
Janet White
Jan 16, 2024

Is gypsum environmentally sustainable?

Gypsum is considered environmentally sustainable due to its natural occurrence and benefits to soil.
Harlon Moss
Jan 16, 2024

What are the safety concerns with lime?

Lime can cause skin irritation and respiratory issues if not handled with care.
Sawaira Riaz
Jan 16, 2024

How does gypsum benefit plants?

Gypsum provides calcium and sulfur, essential for plant growth.
Sawaira Riaz
Jan 16, 2024

Can lime be used for artistic purposes?

Lime is less commonly used in art compared to gypsum.
Sawaira Riaz
Jan 16, 2024

Can lime be used in water treatment?

Yes, lime is used in water treatment processes to purify water.
Aimie Carlson
Jan 16, 2024
About Author
Written by
Sawaira Riaz
Sawaira is a dedicated content editor at difference.wiki, where she meticulously refines articles to ensure clarity and accuracy. With a keen eye for detail, she upholds the site's commitment to delivering insightful and precise content.
Edited by
Huma Saeed
Huma is a renowned researcher acclaimed for her innovative work in Difference Wiki. Her dedication has led to key breakthroughs, establishing her prominence in academia. Her contributions continually inspire and guide her field.

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