gypsum var alabaster

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  • Gypsum Mineral | Uses and Properties

    Uses of Gypsum. Gypsum uses include: manufacture of wallboard, cement, plaster of Paris, soil conditioning, a hardening retarder in portland cement. Varieties of gypsum known as "satin spar" and "alabaster" are used for a variety of ornamental purposes; …

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  • Gypsum, selenite: The mineral gypsum information and pictures

    The Mineral gypsum. Such crystals are found in a clay beds as floater crystal s, where they fully form without being attached to a matrix. Gypsum crystals are known for their flexibility, and slim crystals can be slightly bent. (Though trying to bend good crystals is not recommended, as their flexibility is weak,...

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  • Alabaster - Wikipedia

    Alabaster. The two kinds are readily distinguished by their different hardnesses: gypsum alabaster is so soft that a fingernail scratches it ( Mohs hardness 1.5 to 2), while calcite cannot be scratched in this way (Mohs hardness 3), although it yields to a knife. Moreover, calcite alabaster, being a carbonate,...

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  • U.S. Gypsum Co. Quarry, Alabaster, Iosco Co., Michigan, USA

    Although generally composed of greenish gray and dark gray shale, this formation is lithologically variable and includes discontinuous beds of sandstone, limestone, dolostone, gypsum, and anhydrite. One of these carbonate beds, called the "Brown Lime ," is a 3- to 6-m thick dolostone that can be traced in the subsurface across much of the basin.

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  • Alabaster gemstone information - gemdat.org

    Alabaster is the massive variety of Gypsum, which can occur as transparent crystals often twinned in swallow-tailed forms. The purest form of alabaster is white and translucent but the impurities (e.g. ferric oxide) can colour the stone in yellows, browns and black in veins or patches. Alabaster has been used as an ornamental stone for a long time.

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  • Alabaster - mindat.org

    Gypsum (Var: Alabaster) Richtárová, Staré Hory, Banská Bystrica Co., Banská Bystrica Region, Slovakia tipical sulfat for this locality,size of mineral 14cm.

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  • Us Gypsum in Alabaster, MI with Reviews - YP.com

    Find 2 listings related to Us Gypsum in Alabaster on YP.com. See reviews, photos, directions, phone numbers and more for Us Gypsum locations in Alabaster, …

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  • Us Gypsum Alabaster Mi - Country, Professional Service ...

    Crystal Webster reviewed Us Gypsum Alabaster Mi — 5 star January 2, 2017 · I was born in East Tawas,many of my cousins live in East Tawas, Tawas, and surrounding areas.

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  • Alabaster Stone | Arastone.

    ALABASTER STONE COMPOSITION. The chemical composition of alabaster is the same as that of gypsum: i.e. dihydrate calcium sulphate: CaSO3*2H2O. Gypsum can become dehydrated and lose the water molecules in greater o smaller proportion. If it dehydrates completely, the new mineral is called anhydrite (calcium sulphate, CaSO3).

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  • Selenite (mineral) - Wikipedia

    Selenite (mineral) The four "crystalline" varieties of gypsum are sometimes grouped together and called selenite. All varieties of gypsum, including selenite and alabaster, are composed of calcium sulfate dihydrate (meaning that it has two molecules of water), with the chemical formula CaSO 4 ·2H 2 O.

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  • Gypsum Mineral Data

    Visit our Advertisers for Gypsum : Adam's Minerals Google Search for Gypsum Dakota Matrix Minerals Google Search for Gypsum John Betts Fine Minerals Search for Gypsum McDougall Minerals Google Search for Gypsum Rock and Mineral Shows Google Search for Gypsum Weinrich Minerals, Inc. Google Search for Gypsum. Ask about Gypsum here :

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  • Gypsum gemstone information - gemdat.org

    Gypsum is a very common mineral in sedimentary environments. It is found as massive material ( Alabaster ), clear crystals ( Selenite ) and parallel fibrous variety ( Satin spar ). Gypsum is very soft and very difficult to facet because of its perfect cleavage, therefore faceted stones are quite rare.

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  • Gypsum (var: Alabaster) - Łopuszka Wielka, Podkarpackie ...

    Gypsum (var: Alabaster) - Łopuszka Wielka, Podkarpackie, POLAND; Photo Copyright © Piotr Zając

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  • Gypsum Facts - Softschools.com

    Gypsum has five basic forms: selenite, satin spar, alabaster, rock gypsum, and gypsite. The most common form of gypsum is rock gypsum. There is a large sand dune in New Mexico made of gypsum …

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  • Gypsum | NOVA Mineralogy

    Physical Properties: Chemical formula: CaSO 4 ∙2H 2 O: Class: Sulfate: Crystal system: Monoclinic: Habit: Tabular Elongate masses Rosettes Acicular splays Massive Granular: Color

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  • Minerals Image/Luster Flashcards | Quizlet

    Gypsum var. Alabaster; white. Talc; white. Halite; white ... Gypsum var. Satin Spar. Gypsum var. Selenite; white. OTHER SETS BY THIS CREATOR. 15 terms. Mineral Color/Luster. 73 terms. SSAT Vocab 1. Flickr Creative Commons Images. Some images used in this set are licensed under the Creative Commons through Flickr.com.

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  • Vellechevreux-et-Courbenans, Haute-Saône, Bourgogne ...

    ⓘ Gypsum var: Alabaster Formula: CaSO 4 · 2H 2 O Reference: Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les …

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  • Gypsum Var Selenite - Crystal Classics

    Gypsum Var Selenite. $1,200.00 €1,060 £920.00 approx. ... Spain (probably the Alabaster quarries, Fuentes de Ebro). Crystals of colourless bladed crystals of Gypsum measure to 5cm tall rising from a drusy bed of creamy crystals. Two inter grown crystals of Selenite forming cross configuration. A Spanish classic from the area.

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  • Mineral Properties, Photos, Uses and Descriptions

    Mineral Properties, Photos, Uses and Descriptions. Zircon is the primary ore of zirconium and a gemstone that is available in many colors. Spodumene is a pegmatite mineral, an ore of lithium and sometimes a gemstone. Benitoite - discovery of the State Gem of California - USGS report from 1911.

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  • Introduction to Minerals Study Kit | Carolina.com

    Top Categories. Chemicals. Choose from over 850 chemical products in chemical grades, sizes and concentrations to meet your needs. AP Chemistry. Carolina offers the highest quality kits for a hands-on approach within AP Chemistry classrooms.

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  • Category:Gypsum - Wikimedia Commons

    Pages in category "Gypsum" This category contains only the following page.

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  • Gypsum Value, Price, and Jewelry Information ...

    Gypsum Value, Price, and Jewelry Information. Gypsum is one of the most abundant minerals and is found especially in evaporite environments. Alabaster, the massive, granular variety, has been used for thousands of years, made into vases, bowls, and other useful and decorative objects. Today it is used in ashtrays, clock housings, paperweights, and so forth.

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  • Gypsum (var: Alabaster) - Łopuszka Wielka, Podkarpackie ...

    Gypsum (var: Alabaster) - Łopuszka Wielka, Podkarpackie, POLAND; Photo Copyright © Piotr Zając

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  • Gypsum Var Selenite - Crystal Classics

    Very well formed crystals of gemmy Selenite from Zaragoza, Spain (probably the Alabaster quarries, Fuentes de Ebro). Crystals of colourless bladed crystals of Gypsum measure to 5cm tall rising from a drusy bed of creamy crystals.

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