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Fred Espenak’s ultimate eclipse photography web site is www.MrEclipse.com. It contains photographs of both solar and lunar eclipses, as well as photographs of comets, galaxies, constellations and the night sky. It also features detailed instructions on how to photograph eclipses, eclipse observing t…

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Online 3D simulation of the Solar System and night sky in real time - the Sun, planets, dwarf planets, comets, stars and constellations

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Instituto Geológico y Minero de España (IGME)

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Instituto Geológico y Minero de España (IGME)

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Share your videos with friends, family, and the world

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New, Enable Java applets (jPOWD, Krystal) using CheerpJ Applet Runner Plugin for Chrome Browser.
How do I enable Java if it's been blocked?
How do I enable Java through the Control Panel?

The Mineralogy Database was last updated on 9/5/2012 and it contains 4,714 individual mineral species descriptions with links and a comprehensive image library. Visit the " What's New" section for details.

Each mineral has a page linked to tables devoted to crystallography, crystal structures, X-Ray powder diffraction, chemical composition, physical and optical properties, Dana's New classification, Strunz classification, mineral specimen images, and alphabetical listings of mineral species. There also are extensive links to other external sources of mineral data and information.

Mineral Images
Mineral picture image gallery. php/MySQL database.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Chemical Composition
Mineral species by chemical elements selectable from a periodic table or search form. Three options are provided: 1) Sorted by %, 2) Sorted by mineral name or 3) New Custom weight percent element search.

What is a Mineral ?
Selected mineral definitions spanning the last century defining the mineral kingdom as matter other than that of the plant or animal kingdom.

Crystallography
This section contains tutorials on the 36 crystal classes. Along with this information are links to tables of each class with all the minerals in that class. Printer-ready PDF files of paper crystal models (assembly required) of the crystal classes can be found here.
3D Crystal models of minerals use JAVA applets from KrystalShaper that can be viewed in a browser window. The rotating form on your left is an actual java applet and not an animated GIF image. If the model is not visible then install JAVA on your PC.

Crystal Structures
Mineral species and other structures with crystal structure data using the jPOWD applet. The jmol version is located here.

X-Ray Powder Diffraction
Mineral species searchable by D ₁, D ₂, and D ₃ diffraction spacing.

New Dana Classification
Mineral species by New Dana system.

Strunz Classification
Mineral species by new Nickel-Strunz system (courtesy of Jim Ferraiolo).

Determinative Mineralogy
Mineral species by physical and optical properties and by calculated radioactivity.

Alphabetical Listing
Mineral species listings. The listings include synonyms, quick links to pronunciation, images, and java crystal forms, name origin, and chemical formula.
A B C D E F G H I J K L M N O P Q R S T U V W Y X Z All

Help Topics
Extensive help files that explain mineralogical terms and other features used in webmineral.com including help on Mineral Name Pronunciations and Radioactivity

Other Links
Links to other sites with mineral data.

Alternate Search using Google

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Complete, up-to-date, mineral database containing 4,714 mineral species descriptions and comprehensive picture library of images. These data are linked to mineral tables by crystallography, chemical composition, physical and optical properties, Dana classification, Strunz classification, mineral name origins, mineral locality information, and alphabetical listing of all known valid mineral species.

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Earth Learning Idea - Innovative, Earth-related teaching ideas

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Innovative ideas and activities for Earth Science Environmental and Physical Geography teaching and learning

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Adjust mountain snowfall and temperature to see the glacier grow and shrink. Use scientific tools to measure thickness, velocity and glacial budget.