International Journal of Productivity and Performance Management (Popularity: )

Aims to address new developments and thinking in productivity science and performance management. Previously published ...
Category: Science\Technology\Industrial Engineering

Minerals of the United States (Popularity: )

Click on the map to view pictures of minerals found in the chosen state.
Category: Science\Earth Sciences\Geology\Rocks and Minerals

David Kalat Minerals (Popularity: )

Specialize in minerals from Russia, China, Pakistan and elsewhere.
Category: Science\Earth Sciences\Geology\Rocks and Minerals

Sphere's To You (Popularity: )

A selection of mineral and gemstone spheres, hand or machine cut and polished. Also information ...
Category: Science\Earth Sciences\Geology\Rocks and Minerals

International Gem Society (Popularity: )

Dedicated to bringing quality information and educational services to everyone interested in gemstones.
Category: Science\Earth Sciences\Geology\Rocks and Minerals

The Mineral Gallery (Popularity: )

Minerals, gemstones, rough and facet stones from Tsumeb and the Kalahari Manganese fields. Articles and ...
Category: Science\Earth Sciences\Geology\Rocks and Minerals

Lapis International, LCC (Popularity: )

English version of the extraLapis monograph series.
Category: Science\Earth Sciences\Geology\Rocks and Minerals

Oak Treehopper (Popularity: )

Images of adult and nymph.
Category: Science\Biology\Flora and Fauna\Animalia

Opals and Minerals (Popularity: )

French gem cutting workshop, specialized in Australian opals and gem supplies.
Category: Science\Earth Sciences\Geology\Rocks and Minerals

Ladder brake: Pteris vittata (Popularity: )

Entry in invasive and exotic species of North America, a joint project of The Bugwood ...
Category: Science\Biology\Flora and Fauna\Plantae

An Introduction to Green Flashes (Popularity: )

Real phenomena seen at sunrise and sunset when some part suddenly changes color at sunset, ...
Category: Science\Astronomy\Amateur\Solar System Observing

Dragonflies of North Carolina (Popularity: )

Checklist, photos of 36 species, and notes.
Category: Science\Biology\Flora and Fauna\Animalia

Strongylodon macrobotrys (Popularity: )

Images, description, and culture of jade vine.
Category: Science\Biology\Flora and Fauna\Plantae

Geodeland (Popularity: )

Sales of geodes, fossils, and minerals from the Elmwood Mine, and other U.S. localities.
Category: Science\Earth Sciences\Geology\Rocks and Minerals