The densities of rocks and minerals are normally expressed as specific gravity, which is the density of the rock relative to the density of water. This isnt as complex as you may think because waters density is 1 gram per cubic centimeter or 1 g/cm3. Therefore, these numbers translate directly to g/cm3, or tonnes per cubic meter (t/m3).
The following Table provides a list of typical rock types and minerals, with their density range and mean values. From this Table, it can be seen that the entire range of densities covers a factor of about eight— from 1.0 g/cm 3 for water to 8.1 g/cm 3 for cinnabar.
rock | Definition Characteristics Types
where ρ B is the density of the bulk rock and ρ G is the density of the grains (i.e., the mineral, if the composition is monomineralogic and homogeneous). For example, if a sandstone has a ρ B of 2.38 grams per cubic centimetre (g/cm 3 ) and is composed of quartz (SiO 2 ) grains having ρ G of 2.65 g/cm 3 , the total porosity is
Table 3: Densities of compounds commonly found in rocks
It was found that the average density per rock was linear in average gray scale for each rock, as shown in Figure 3. The fitted lines are as follows, with AGS = average gray scale and AD = average density: (5) The values of R 2 were 0.91 and 0.97 for the 0.5 rocks and the 0.75 rocks, respectively.
How to Calculate Specific Gravity of Rock | Sciencing
Apr 24, 2017 · Divide the mass of the rock by its volume to calculate the density of the rock. In our example, the density is 20.4/8 = 2.55 g/cubic cm. Divide the rock density by the density of water to calculate the specific gravity.
Porosity and Bulk Density of Sedimentary Rocks USGS
Average values for the porosity of sedimentary rocks have been given by Barrell (1914) as: shale, 8.2 percent; sandstone, 14.8 per cent; limestone, 5.3 percent; and all sedimentary rocks, 8.5 percent. Additional data since the publication of Barrells summary indicate that the average value of 8.2 percent for the porosity of shale may be low.
Densities of Sedimentary Rocks GPG 0.0.1 documentation
13 rows · Density; Susceptibility; Seismic Velocity; Dielectric Permittivity; Electrical Conductivity; …
Rock Types and Specific Gravity Edumine
Density (in lb/cu ft.) = SG X 62.4 Density (SI units) = SG X Density of water (1.0 g/cc or 1000 kg/cubic metre) Specific Gravity and Porosity of Various Rock Types
Chapter 5 Engineering Properties of Soil and Rock
Chapter 5 Engineering Properties of Soil and Rock 5.1 Overview The purpose of this chapter is to identify, either by reference or explicitly herein, appropriate methods of soil and rock property assessment, and how to use that soil and rock property data to establish the final soil and rock parameters to be used for geotechnical design.
How to Calculate Specific Gravity of Rock | Sciencing
Apr 24, 2017 · Divide the mass of the rock by its volume to calculate the density of the rock. In our example, the density is 20.4/8 = 2.55 g/cubic cm.
For sedimentary rocks, there is generally a broad range of density values that reflect variations of porosity and saturation. The highest values represent dense (low porosity) members of the type, whereas the lower values result from porosity increase and/or increase of gas content in the pores.
Density of Various Solids
* Note that even if pounds per cubic foot is often used as a measure of density in the U.S., pounds are really a measure of force, not mass. Slugs are the correct measure of mass. You can divide pounds per cubic foot by 32.2 for a rough value in slugs.
Rock Property Tables for Specific Gravity Density and
Engineering design tables for average specific gravity, density and porosity for various rock types. Principles and Practice of Ethics for Professionals in Mining Rock Mass Characterization for Mine Design
DETERMINATION OF BULK DENSITY OF ROCK ... Digital
Crawford, Kacy Mackenzey, "DETERMINATION OF BULK DENSITY OF ROCK CORE USING STANDARD INDUSTRY METHODS", Masters report, Michigan Technological University, 2013. https://digitalcommons.mtu.edu/etds/661
Density and Magnetic Susceptibility Values for Rocks in
Density Density values for rocks in our study area are generally consistent with common trends (Johnson and Olhoeft, 1984) and show highest average grain densities for both extrusive and intrusive mafic igneous rocks at 2.88 and 2.93 g/cm3 respectively, and lowest mean grain density values for felsic intrusive rocks at 2.67 g/ cm3 (table 1). Because grain density is affected largely by a
Magnetic properties of rocks and minerals ALASKA GOLD
Rock/Mineral Chemical Formula Density Volume k Mass Z (10 3 kg m -3) (10 4 SI) (10 4 m3kg -•) References Igneous Rocks andesite basalt diabase diorite gabbro granite peridotite porphyry pyroxenite rhyolite igneous rocks average acidic igneous rocks average basic igneous rocks Sedimentary Rocks clay coal dolomite limestone red sediments
Density of Construction Materials in kg/m3 and lb/ft3
Density Values of Different Construction Materials. For example water has a density of 1000kg/m 3 , if we place bamboo wood (350kg/m 3) on water it will float on water surface similarly if we drop a brick (1700 kg.m 3) it will sink into the water. Density value of construction material will also help to find out the quantity of material needed for particular space.
Densities of Common Materials Engineering ToolBox
density units converter; Note! - be aware that for many of the products listed below there is a difference between "bulk density" and actual "solid or material density". This may not be clear in the description of the products. Always double check the values with other sources before important calculations.
Chapter 4 Engineering Classification of Rock Materials
Chapter 4 Engineering Classification of Rock Materials 631.0400 Engineering properties of rock To use rock in engineering applications, certain prop-erties of the rock must be assessed to reasonably pre-dict performance in the as-built condition. The proper-ties of rock fall into two broad classes: rock material
Crains Petrophysical Handbook | Lithology PE Density
Rock Volume from PE Density Neutron Models The PE values can be linearly interpolated between any two assumed end points of a two mineral model in the usual way. 7: Min1 = (PE - PE2 - Vsh * PESH) / (PE1 …
Rock mass properties
for these intact rock pieces, and value of the Geological Strength Index GSI for the rock mass. Intact rock properties For the intact rock pieces that make up the rock mass, equation (1) simplifies to: 0.5 3 1 3 1 ci ci m i (5) The relationship between the principal stresses at failure for a given rock is defined by
In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, although this is scientifically inaccurate – this quantity is more specifically called specific weight. For a pure substance the density has the same numerical value …