Cally Oldershaw is a

gemologist Gemology or gemmology is the science dealing with natural and artificial gemstone materials. It is a geoscience and a branch of mineralogy. Some jewelers (and many non-jewelers) are academically trained gemologists and are qualified to identify a ...

and science educator. She is the author of several very widely held books about gems. Oldershaw is Liaison Officer for the

Geological Society of London The Geological Society of London, known commonly as the Geological Society, is a learned society based in the United Kingdom. It is the oldest national geological society in the world and the largest in Europe with more than 12,000 Fellows. Fe ...

and an examiner for the

Gemmological Association of Great Britain The Gemmological Association of Great Britain (Gem-A) is an international gemmology education and qualifications body based in the United Kingdom. History Gem-A dates back to 1908 when a gemmological committee was established by ''The National A ...

Bibliography

* ''Gems of the World''. (in 442 WorldCat libraries) *''Firefly guide to gems'' in 686 libraries according to Worldcat *''Gemstones'' (published in association with the

Natural History Museum A natural history museum or museum of natural history is a scientific institution with natural history collections that include current and historical records of animals, plants, fungi, ecosystems, geology, paleontology, climatology, and more. ...

). *''Atlas of geology and landforms'' and ''Rocks and minerals close up'' (elementary and junior high school textbooks) She also wrote the multiple parts of the Geological society of London series of booklets, ''Earth in our hands'',http://www.worldcat.org/title/earth-in-our-hands-how-geoscientists-serve-and-protect-the-public/oclc/57198698&referer=brief_results and many parts of the ''Series: Closer look at...'' series for children published by Copper Beech Books.

References

{{DEFAULTSORT:Oldershaw, Cally Year of birth missing (living people) Living people Gemologists