• The Dinosaur Store - Moroccan Fossils

    The country of Morocco, located in northwest Africa, is rich with fossils such as ammonites, orthoceras, trilobites and dinosaur teeth. A portion of the Sahara Desert, which once was an ocean, is contained within Morocco and holds many remains of creatures that once inhabited the earth.

  • Criss Cross Puzzle

    Across Down 0 of 0 words were placed into the puzzle. Created by Puzzlemaker at DiscoveryEducation.com . Terms of Use Privacy Policy Contact Us About Us Check Requirements Download Adobe Reader Online Closed Captioning Careers @ Discovery Education

  • Gypsum, selenite: The mineral gypsum information and pictures

    Detailed description, properties, and locality information guide about the mineral gypsum (selenite).

  • Gypsum - Wikipedia

    Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 ·2H 2 O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wallboard.

  • Lustre (mineralogy) - Wikipedia

    Lustre or luster is the way light interacts with the surface of a crystal, rock, or mineral.The word traces its origins back to the Latin lux, meaning "light", and generally implies radiance, gloss, or brilliance.

  • Luster: Mineral Properties - The Mineral and Gemstone Kingdom

    Luster describes how a mineral appears to reflects light, and how brilliant or dull the mineral is. The terms used to describe luster are: Metallic (also known as splendent)

  • Grades of Paper - Pulp and Paper Resources on the Web

    This page contains list of various types of paper based on their end use, process of manufacturing, raw material used etc. Papers can be graded in 'n' numbers of ways and if we count all permutation and combination of grades total grades may well exceed 10000.

  • What are Minerals? | What are Mineral Properties?

    A mineral is a naturally occurring, inorganic solid, with a definite chemical composition and ordered internal structure.

  • Gypsum Mineral Data

    General Gypsum Information : Chemical Formula: CaSO4•2(H2O) Composition: Molecular Weight = 172.17 gm Calcium 23.28 % Ca 32.57 % CaO: Hydrogen 2.34 % H 20.93 % H 2 O

  • Welcome to OSC-MRO

    A Veteran Owned Small Business with decades of experience allows OSC-MRO to understand your Supply Chain and Logistics needs and get you the products you require efficiently and quickly...Your Mission Delivered...

  • Difference Between Gypsum and Drywall | Difference Between

    Gypsum vs Drywall Drywall is a product used as finishing mainly for interiors of buildings. Drywall may also be called gypsum board or plasterboard. Gypsum plaster is the material used to make drywall with fiberglass matting covering on the sides of the board.

  • Physics Toys: Physics Toy Store

    Surf's Up!: Another gravity defying creation by Kyle Auga with @kyles_kinetics as one of our favorite features here over the past couple years.

  • GeoMan's Mineral Identification Tests

    Since few of us carry these index minerals around in our pockets, we can use more common articles to get a rough estimate of hardness.

  • Gypsum Mineral | Uses and Properties

    What is Gypsum? Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulfur, calcite, and dolomite. ...

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  • Rocks & Minerals Definitions

    Feldspar Feldspar refers to a group of minerals containing aluminum and silica.They all show good cleavage in two directions at about 90 degrees. The hardness is about 6 and the specific gravity between 2.5 - 2.8.