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Mineralogi & ädelstenar
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The Ozarks highland region of the Midwest, located in southern Missouri and northern Arkansas, contains beautiful mineral specimens for those with sharp eyes and a keen interest to …
Explore the fascinating history and contemporary influence of turquoise as a gemstone of choice for collectors, artists, and jewelry wearers. Immerse yourself in its history from …
This is the first published guide to Herkimer diamonds, striking quartz crystals, that includes all important aspects of interest to anyone curious about this unique form of the …
The mineral Titania is found in large, well-formed crystals at localities around the world. Over 100 color photos display three of the common titanium dioxide minerals: rutile, …
Collectors have long admired uranium and thorium minerals for their brilliant colors, intense ultraviolet fluorescence, and rich variety of habits and associates. Radioactive …