根据有关资料和笔者实际收集的情况,经汇总得知,2008年世界上有20个国家和地区发行矿物宝石专题和与之相关题材的邮票共23套51枚。其中邮票30枚,小型张11枚,小全张10枚(小全张共含邮票44枚)。发行国家及套数枚数均较2007年有所增加(详见附表)。纵观这些邮票,在发行国家及发行数量、邮票的设计和印制质量上,总体上还是比较 According to the relevant information and the actual situation collected by the author, the summary shows that in 2008, there were 23 sets of 51 sets of stamps on mineral gems and related topics distributed in 20 countries and regions in the world. Including 30 stamps, small sheets 11, souvenir sheets 10 (souvenir sheets containing 44 stamps). Issued countries and the number of sets are an increase over 2007 (see the table). Throughout these stamps, the issue of the number of countries and the issue, the stamp design and printing quality, the overall comparison