茶 - How to identify varieties of tea?
铁观音　Tie Guanyin Tea / tat-kuan-yin Tea / Iron Buddha Tea
乌龙茶　Oolong Tea 
黑茶　Dark Tea
红茶　Black Tea
龙井茶　Longjing Tea / Lungching Tea / Dragon Well Tea
君山银针　Junshan Silver Needle Tea
碧螺春　Biluochun Tea
牡丹绣球　Peony Jasmine Tea
黄山毛峰　Huangshan Maofeng Tea
岩茶　Rock Tea
冻顶乌龙　Dongding Oolong Tea
菊花茶　Chrysanthemum Tea
台湾阿里山乌龙　Taiwan Alishan Oolong Tea
大红袍　Dahongpao Tea (Wuyi Mountain Rock Tea)
普洱　Pu'er Tea
祁门红茶　Keemun Black Tea
茉莉花茶　Jasmine Tea
陈年普洱　Aged Pu'er Tea
立顿红茶　Lipton Black Tea
台湾冻顶乌龙　Taiwan Dongding Oolong Tea
绿茶　Green Tea
太平猴魁　Taiping Houkui Tea 　(A kind of Green Tea)
西湖龙井　Xihu Longjing Tea 　(A kind of Green Tea)
大白毫　White Milli-Silver Needle Tea
信阳毛尖　Xinyang Maojian Tea　 (A kind of Green Tea)

Source : http://www.dxmtea.com/captions.asp?id=585, and multiple others


So your package showed 铁观音 (Tie Guanyin Tea) 神品(Shen Pin, This is a brand maybe) 藏香 (Stock Flavored) 真空无氧包装(Vacuumed and oxygen-free packaging) 茶叶新鲜原味(Fresh and Original Flavor Tea).

铁观音 is a kind of Oolong Tea here, this package assumes you already knew it's a name of tea.