📁 氖
条目 (20+)
Bouquets to Art, 2006
http://www.rightreading.com/bouquets-to-art/2006/bouquet-to-art-2006.htm
EnvironmentalChemistry.com: Vanadium
http://environmentalchemistry.com/yogi/periodic/V.html
USGS Minerals Information: Vanadium
http://minerals.usgs.gov/minerals/pubs/commodity/vanadium/