| Title | Pinakiolite from Langban, Sweden |
| Description | Pinakiolite, the black mineral, is a magnesium manganese borate. Dolomite, calcium-magnesium carbonate, surrounds it in this specimen, which is 3 cm across. |
| Location | Sweden ▹ Varmland. Near Langban. |
| Photographer | Shannon Heinle. 2001-03-21. |
| Collection | University of North Dakota Mineralogy Collection #1103. |
| Key words | pinakiolite, dolomite, Langban, Sweden |
| Tech details | 509 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 229 |
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