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2. Mineral collecting - Wikipedia

   en.wikipedia.org/wiki/Mineral_collecting

   Mineral collectors find a variety of reasons to collect minerals. Many minerals are strikingly beautiful and collected for their aesthetic value. Others collect to learn more about mineralogy, the local mining industry and/or local geology. Some simply enjoy exploring the outdoors and socializing and trading with other mineral collectors.

3. Amateur geology - Wikipedia

   en.wikipedia.org/wiki/Amateur_geology

   Amateur geology or rock collecting (also referred to as rockhounding in the United States and Canada) is the non-professional study and hobby of collecting rocks and minerals or fossil specimens from the natural environment. [1] [2] In Australia, New Zealand and Cornwall, the amateur geologists call this activity fossicking. [3]

4. John Sinkankas - Wikipedia

   en.wikipedia.org/wiki/John_Sinkankas

   John Sinkankas (May 15, 1915 – May 17, 2002) was a Navy officer and aviator, gemologist, gem carver and gem faceter, author of many books and articles on minerals and gemstones, and a bookseller and bibliographer of rare books.

5. List of minerals - Wikipedia

   en.wikipedia.org/wiki/List_of_minerals

   Amethyst crystals – a purple quartz Apophyllite crystals sitting right beside a cluster of peachy bowtie stilbite Aquamarine variety of beryl with tourmaline on orthoclase Arsenopyrite from Hidalgo del Parral, Chihuahua, Mexico Aurichalcite needles spraying out within a protected pocket lined by bladed calcite crystals Austinite from the Ojuela Mine, Mapimí, Durango, Mexico Ametrine ...

6. George Frederick Kunz - Wikipedia

   en.wikipedia.org/wiki/George_Frederick_Kunz

   The George F. Kunz Collection is a significant special collection on gems and minerals including rare books on gemology, the folklore of gemstones through history, lapidary arts and archival gem trade records important to the provenance of named stones such as the "Hope Diamond." Kunz was a former USGS employee. The collection is held in Reston ...

7. Lapidary (text) - Wikipedia

   en.wikipedia.org/wiki/Lapidary_(text)

   The tradition goes back to ancient Mesopotamia with books like Abnu šikinšu. Theophrastus (died c. 287 BC) treated rocks and other minerals as well as gems, and remained a significant indirect source for the scientific tradition; he was all but unknown in Europe in the Middle Ages, and not translated into Latin until the 15th century. [8]