geodegallery.com 的前十大競爭對手

minerant.org

starting point for exploring mineralogy on the internet, information relevant to mineral collectors and lots of links to mineralogy or earth science related sites

minerofil.hu

magyar minerofil társaság hivatalos honlapja

bestcrystals.com

Eureka! You've found it... Welcome to Bestcrystals.com. Dedicated to crystals, minerals, fossils, and meteorites since 1994. Our site showcases an ever-changing variety of select specimens, as well as cut and polished pieces and jewelry.

dakotamatrix.com

Dakota Matrix Minerals sells quality mineral specimens and mineral specimen collections from worldwide localities.

igsb.uiowa.edu

for more than a century, iihr has been leading the world in hydroscience research and education.

funsci.com

fun science experiments for amateur scientists and schools, such as a glass-sphere microscope, a telescope, a sidereal indicator, a stereoscope, a herbarium, a stereoscopic microscope, experiments in electrochemistry, lexical analysis of texts, environmental exploration, panoramic pictures, observation of protists and other microorganisms, as well as links to other amateur sites.