A great place to learn

Article Abstract:

Gem and mineral clubs can provide wonderful educational programs, given the clubs' knowledgeable instructors, state-of-the art equipment and facilities, expert instruction, and peer advice. Among these clubs, the San Francisco Gem and Mineral Society is the most popular and respected across the US.

Associations, Gem cutting

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Jurassic junction

Article Abstract:

The Altmuhl Valley's limestone terrain in Bavaria has weathered geologic formations and trapped ancient flying insects, twigs of inland trees and flying reptiles into the calcareous mud. These fossils are of paleontological interest and has aroused the interest of many fossil collectors.

Evaluation, Germany, Geology, Stratigraphic, Stratigraphy, Jurassic period, Paleontology, Stratigraphic, Stratigraphic paleontology

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The great flap

Article Abstract:

The discovery of a feather from the Jurassic period in lithographic slate led to the discovery of the Archaeopteryx. This discovery neatly dovetailed with the theory of natural selection posited by Charles Darwin. The controversy surrounding the bird is presented.

Archaeopteryx

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