File:Turquoise with quartz.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.

**Turquoise with Quartz**
Taken by Aram Dulyan ( User:Aramgutang)	Date:	22'FEB 2005
Blue massive turquoise in matrix with quartz from Mineral Park, Arizona, USA. Photograph taken at the Natural History Museum, London.	Camera:	Canon PowerShot A75
	ISO:	100
	Aperture:	F 3.5
	Shutter speed:	3/10 s

This work has been released into the public domain by its author, Aramgutang at the English Wikipedia project. This applies worldwide.

In case this is not legally possible:
Aramgutang grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

File usage

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

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	Canon
Camera model	Canon PowerShot A75
Exposure time	3/10 sec (0.3)
F-number	f/3.5
Date and time of data generation	16:28, 22 February 2005
Lens focal length	5.40625 mm
Orientation	Normal
Horizontal resolution	180 dpi
Vertical resolution	180 dpi
Software used	Adobe Photoshop 7.0
File change date and time	16:27, 9 June 2005
Y and C positioning	Centered
Exif version	2.2
Date and time of digitizing	16:28, 22 February 2005
Image compression mode	5
Shutter speed	1.75
APEX aperture	3.625
Exposure bias	0
Maximum land aperture	2.96875 APEX (f/2.8)
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
Colour space	Uncalibrated
Focal plane X resolution	4,923.0769230769
Focal plane Y resolution	4,923.0769230769
Focal plane resolution unit	inches
Sensing method	One-chip colour area sensor
Custom image processing	Normal process
Exposure mode	Manual exposure
White balance	Manual white balance
Digital zoom ratio	1
Scene capture type	Standard

Find out about Schools Wikipedia

SOS Children has brought Wikipedia to the classroom. SOS Childrens Villages is there for the children in our care until they are ready for independence. There are many ways to help with SOS Children's Villages.