| Title | Smithsonite and Limonite | 
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| Description | The light green material is smithsonite, the rusty orange is limonite.  Smithsonite is ZnCO3 (zinc carbonate).  It is a carbonate that generally has a silky to pearly luster giving natural specimens a play of light that resembles the fine luster of melted wax glowing under a candle flame. Limonite (the orange material) is not a true mineral but a mixture of  hydrated iron oxide minerals. Most of limonite is made up of goethite FeO(OH).  This sample is 11 cm across. | 
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| Location | USA ▹ Missouri ▹ Newton. Near Granby. | 
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| Photographer | Darla Sondrol. 2001-06-18. | 
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| Collection | University of North Dakota Mineralogy Collection #698. | 
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| Key words | smithsonite, limonite, Missouri | 
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| Tech details | 888 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. | 
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| GeoDIL number | 749 | 
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