The hardness of limestone averagely ranges from three to four while that of granite from six to seven. The heat capacity of limestone is 0.91 KJ/Kg K, whereas that of graphite is 0.79 KJ/Kg K. Therefore, with such properties and other compounds in each stone, limestone is more inclined to be pressure-resistant while granite is heat resistant.

Limestone is a sedimentary rock composed largely of the mineral calcite (calcium Limestone is a good material for buildings, its durability and hardness 

Rockwell hardness values obtained are 89.0, 89.9 and 86.6 while the morh's hardness values are 6.90, 6.96 and 7.03 respectively for sample A; B and C. The impact values obtained are 0.089, 0.092

The hardness of Limestone is3-4whereas its compressive strength is115.00 N/mm 2. Streak is the color of rock when it is crushed or powdered. The streak of Limestone is white whereas its fracture is splintery.

ABSTRACT: This research investigates the relationship between rock hardness and limestone dissolution. Bedrocks at Guilin in subtropical southern China are 

Calcite is number 3 on the Mohs hardness scale; it can be scratched readily by a knife blade or geologic pick. It has a specific gravity of 2.71. Three perfect 

metamorphic rocks Table 4–3 Hardness and unconfined compressive strength of rock 4–5 materials Table 4–4 Dry density (unit weight) 4–6 Table 4–5 Weathering terminology 4–6 Table

The limestone rock is not siliceous and has no abrasive qualities to spoil the cutting edge of the bit, but if you should consider only the 

There are various formations of rock with various PSI ratings. This chart provides the Approximate MOH Hardness for each formation.

The effect of exposure to high temperature on rock strength is a topic cooling methods on the strength and hardness of a limestone named 

Rocks with hardness 1-3 are soft rocks from 3-6 are medium hardness rocks and 6-10 are hard rocks. The hardness of Limestone is 3-4 whereas its compressive strength is 115.00 N/mm 2 . Streak is the color of rock when it is crushed or powdered. Check now.