Gemologist Martin P. Steinbach has had a lifelong fascination with asterism. This is the property of gems (so-called star stones or asteria) to show a star-like pattern of reflected or refracted light after they have been polished and shaped. This is the first book on this topic, showing the different classes of star stones using a large number of photos.
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Gemologist Martin P. Steinbach has had a lifelong fascination with asterism. This is the property of gems (so-called star stones or asteria) to show a star-like pattern of reflected or refracted light after they have been polished and shaped. This is the first book on this topic, showing the different classes of star stones using a large number of photos.
