File:Petalite.jpg

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

Description	A 3 x 4 cm fragment of Petalite (LiAlSi₄O₁₀)from Minas Gerais State, Brazil.
Date	October 2006
Source	Own work
Author	Eurico Zimbres
Permission ( Reusing this file)	Free for all use

Licensing

This picture was taken by Eurico Zimbres
Please credit this : Eurico Zimbres

Eurico Zimbres, the copyright holder of this work, hereby publishes it under the following license:

This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic license.

Attribution: Eurico Zimbres

You are free:

to share – to copy, distribute and transmit the work
to remix – to adapt the work

Under the following conditions:

attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

CC-BY-SA-2.5 truetrue

File usage

The following pages on Schools Wikipedia link to this image (list may be incomplete):

Alkali metal

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

Camera manufacturer	SONY
Camera model	DSC-W5
Exposure time	1/125 sec (0.008)
F-number	f/9
ISO speed rating	100
Date and time of data generation	18:12, 2 May 2005
Lens focal length	18.7 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
File change date and time	18:12, 2 May 2005
Y and C positioning	Co-sited
Exposure Program	Manual
Exif version	2.2
Date and time of digitizing	18:12, 2 May 2005
Image compression mode	8
Exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Centre weighted average
Light source	Unknown
Flash	Flash did not fire, compulsory flash suppression
Colour space	sRGB
Custom image processing	Normal process
Exposure mode	Manual exposure
White balance	Auto white balance
Scene capture type	Standard
Contrast	Normal
Saturation	Normal
Sharpness	Normal

The best way to learn

Wikipedia for Schools brings Wikipedia into the classroom. SOS Childrens Villages helps more than 2 million people across 133 countries around the world. Want to learn more? Go to http://www.soschildrensvillages.org.uk/sponsor-a-child