 
The physical properties of Limestone include:
Density: Medium to high.
Hardness: Medium to high.
Scratch Resistance: Resistant and withstands dryness, but may be weaker in certain areas.
Color: Usually white or gray, but can have other colors.
Water Absorption: Medium to high.
Corrosion Resistance: May be susceptible to damage from strong acids, but generally resistant to many chemical substances.
Pressure Resistance: Generally strong and capable of withstanding high pressure.
The chemical properties of Limestone are as follows:
Limestone is a type of sedimentary rock composed primarily of calcium carbonate (CaCO3). Here are the chemical properties of limestone:
Acid Decomposition: Limestone undergoes decomposition in the presence of strong acids such as hydrochloric acid (HCl), liberating carbon dioxide (CO2).
Basicity: Limestone is a basic substance and reacts with acids.
Water Resistance: Limestone is relatively water-resistant and has a low reactivity with water.
Thermal Stability: Limestone has high thermal stability and does not decompose at high temperatures.
Structural Properties: Limestone has a porous structure, making it suitable for use as a construction material.