What are some properties the mineral calcite?

Answer 1

the properties of lava rocks are: rough/bumpy, smell like dirt, can be yellow, red, gold and black.the properties of lava rocks are: rough/bumpy, smell like dirt, can be yellow, red, gold and black.

Answer 2

Limstone is composed predominantly of Calcium Carbonate (CaCO3)

Some of the physical properties of limestone are as follows:

Density of Limestone:

The density of limestone is very variable as it is a natural earth material. As such, a range of densities are quoted in the literature and testing should be done on a specific sample to get an exact result.

Range of intact densities for limestone:

Common - 2100 to 2610 kg/m3[A] and occasionally up to 2900 kg/m3[B]

In imperial units:

131.1 lbs/ft3 to 162.9 lbs/ft3 and occasionally up to 181.0 lbs/ft3.

Elastic properties of limestone:

Intact limestone can have a Young's modulus (E) ranging from:

9 GPa - 80 GPa.[B],[C]

Poisson's ratio (v) for intact specimens varies from between:

0.2 - 0.3.[B]

Bulk modulus (K) derived from the above values using the following relation:

K = E / (3(1-(2v))

Bulk Modulus ranges from:

5 GPa - 66.67 GPa

Shear modulus (G) derived from the above values using the following relation:

G = E / 2(1+v)

Shear modulus ranges from:

3.5 GPa to 33.33 GPa

Limestone is a natural earth material and so significant variability in stiffness properties may occur, as such ranges of values are commonly quoted for the strength of rock and other geotechnical materials. Ideally therefore the user would have access to specific lab test data for the rock type in question.

Compressive strength properties of limestone

Intact Limestone can have a uniaxial compressive strength ranging from:

15 MPa - 290 MPa.[B],[C]

However the following should be noted:

Limestone is a natural earth material and so significant variability in strength and stiffness properties may occur.

As such ranges of values are commonly quoted for the strength of rock and other geotechnical materials. Ideally therefore the user would have access to specific lab test data for the rock type in question.

Also it is important to note that intact rock strengths require scaling for use in rock engineering as rock masses are usually fractured and discontinuous bodies whose behaviour is often controlled by the shear strength of the discontinuities rather than the intact strength properties of the rock. Considerable care should therefore be taken when attempting to apply intact rock strength parameters derived in the laboratory for use in rock mass engineering design.

Sources:

[A] Bell, F. G. (2007). Basic Environmental and Engineering Geology. Dunbeath, Whittles Publishing Limited.

[B] Cobb, F. (2009). Structural Engineer's Pocket Book, Second edition. London, Butterworth-Heinemann.

[C] Hudson, J.A. (2005). Engineering Properties of Rocks. Amsterdam, Elsevier.

Answer 3

Name 5 characteristics of limestone?