| http://www.w3.org/ns/prov#value | - http://www.flickr.com/photos/davesag/8312984/. -- Creative Commons Lizenz (Namensnennung, keine kommerzielle Nutzung). -- Zugriff am 2006-07-13] Ruby is a red gemstone, a variety of the mineral corundum (aluminium oxide) in which the color is caused mainly by chromium.
|
