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  2. Mica - Wikipedia

    en.wikipedia.org/wiki/Mica

    The most important sources of sheet mica are pegmatite deposits. Sheet mica prices vary with grade and can range from less than $1 per kilogram for low-quality mica to more than $2,000 per kilogram for the highest quality. [21] In Madagascar [22] and India, [23] it is also mined artisanally, in poor working conditions and with the help of child ...

  3. Construction estimating software - Wikipedia

    en.wikipedia.org/wiki/Construction_estimating...

    Construction cost estimating software is computer software designed for contractors to estimate construction costs for a specific project. A cost estimator will typically use estimating software to estimate their bid price for a project, which will ultimately become part of a resulting construction contract. Some architects, engineers ...

  4. Cost estimate - Wikipedia

    en.wikipedia.org/wiki/Cost_estimate

    A cost estimate is the approximation of the cost of a program, project, or operation. The cost estimate is the product of the cost estimating process. The cost estimate has a single total value and may have identifiable component values. A problem with a cost overrun can be avoided with a credible, reliable, and accurate cost estimate. A cost ...

  5. Glossary of construction cost estimating - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_construction...

    A Allocation of costs is the transfer of costs from one cost item to one or more other cost items. Allowance - a value in an estimate to cover the cost of known but not yet fully defined work. As-sold estimate - the estimate which matches the agreed items and price for the project scope. B Basis of estimate (BOE) - a document which describes the scope basis, pricing basis, methods ...

  6. Muscovite - Wikipedia

    en.wikipedia.org/wiki/Muscovite

    Muscovite (also known as common mica, isinglass, or potash mica [6]) is a hydrated phyllosilicate mineral of aluminium and potassium with formula KAl 2 (AlSi 3 O 10)(F,OH) 2, or 2 (Al 2 O 3) 3 (SiO 2) 6 (H 2 O). It has a highly perfect basal cleavage yielding remarkably thin laminae (sheets) which are often highly elastic.

  7. Spruce Pine Mining District - Wikipedia

    en.wikipedia.org/wiki/Spruce_Pine_Mining_District

    The district is known for producing multiple types of commercial materials. It holds the Earth's largest concentration of pure quartz. Ground micas are collected from the mining of other minerals in the district. Sheet mica also exists, but it is not mined. [1] Feldspars are another major mineral that is mined here. [1]

  8. Micarta - Wikipedia

    en.wikipedia.org/wiki/Micarta

    Micarta industrial laminate sheet is a hard, dense material made by applying heat and pressure to layers of prepreg. These layers of lamination usually consist of cellulose paper, cotton fabrics, synthetic yarn fabrics, glass fabrics, or unwoven fabrics.

  9. Mining in India - Wikipedia

    en.wikipedia.org/wiki/Mining_in_India

    Even mining done on small scale contributes 6% to the entire cost of mineral production. Indian mining industry provides job opportunities to around 700,000 individuals. [1] As of 2012, India is the largest producer of sheet mica, 2015 the fourth largest producer of iron ore, alumina, chromite, and bauxite in the world.