Amethyst Galleries
Mineral Galleries/minerals Containg Zinc
Long list of mineral resources that contain zinc.
Chemicool
Chemicool: Zinc
This site from the Chemicool Periodic Table provides an abundance of information on the element including everything from atomic number to abundance.
Web Elements
Web Elements Periodic Table: Zinc
This site from Mark Winter and Web Elements provides information on the element Zinc (Zn) and includes pictures and audio information about it.
Chemicool
Chemicool: Yttrium
Chemicool yields loads of information on the element. Everything from price to natural abundance.
Web Elements
Web Elements Periodic Table: Yttrium
At this site from Mark Winter at WebElement, you can navigate around for charts and graphs of data on Yttrium. Probably the most comprehensive of all periodic tables on the web.