- 1 What do limestone and marble have in common?
- 2 What is harder marble or limestone?
- 3 Is marble more durable than limestone?
- 4 Does dolomite absorb water?
- 5 What are the benefits of dolomite?
- 6 Why is dolomite used in construction?
- 7 What are the physical and chemical properties of limestone?
- 8 What are the properties and uses of limestone?
- 9 What are 3 characteristics of limestone?
- 10 Does marble weather easily?
- 11 What is the importance of marble?
- 12 Does marble have a streak?
What do limestone and marble have in common?
Limestone is made of fossil fragments, held together with calcite; the shell near the center is about 1 cm across. Botanic Gardens building Washington, D.C. Marble is made of calcite crystals (white) and some colored grains of mica inclusions; the grains in a marble are locked together like jigsaw puzzle pieces.
What is harder marble or limestone?
Marble is a metamorphic rock, and limestone is a sedimentary rock. Limestone is more porous than marble, which is much harder.
Is marble more durable than limestone?
While marble is slightly harder and denser than limestone, both rate very low on the Mohs scale, a rating used to measure the hardness of stones. Limestone generally ranks at around a 3 on the scale, while marble falls between 3 and 4.
Does dolomite absorb water?
Sedimentary rocks, such as sandstone and dolomite limestone, are also absorbent stones, at up to 30 and 20 percent porosity, respectively.
What are the benefits of dolomite?
It may be used to treat conditions caused by low calcium levels such as bone loss (osteoporosis), weak bones (osteomalacia/rickets), decreased activity of the parathyroid gland (hypoparathyroidism), and a certain muscle disease (latent tetany).
Why is dolomite used in construction?
Used in construction It has low solubility, which makes it resistant to acid content of rain and soil.
What are the physical and chemical properties of limestone?
Limestone is a common chemical sedimentary rock. It is generally light in color and composed from calcium carbonate-rich minerals including calcite and aragonite. Its presence in rocks can be detected by dropping acid on a sample of rock and looking for any signs of bubbling.
What are the properties and uses of limestone?
Limestone Uses It is the raw material for the manufacture of quicklime (calcium oxide), slaked lime (calcium hydroxide), cement and mortar. Pulverized limestone is used as a soil conditioner to neutralize acidic soils (agricultural lime).
What are 3 characteristics of limestone?
Limestone is usually gray, but it may also be white, yellow or brown. It is a soft rock and is easily scratched. It will effervesce readily in any common acid.
Does marble weather easily?
7. Marble is composed of calcite, a mineral strongly resistant to weathering, whereas granite is composed of quartz, a mineral strongly reactive in water. Marble is composed of a mineral that readily reacts with water (calcite), whereas granite is composed of minerals more resistant to weathering (like quartz).
What is the importance of marble?
It is used for its beauty in architecture and sculpture. It is used for its chemical properties in pharmaceuticals and agriculture. It is used for its optical properties in cosmetics, paint, and paper. It is used because it is an abundant, low-cost commodity in crushed stone prepared for construction projects.
Does marble have a streak?
This process changes an ordinarily grey and dull limestone into the stunningly white stone with black streaks that we all know as marble. The black streaks themselves are a result of the metamorphism process concentrating the carbon impurities from the limestone into the well-known black lines.