| Title | Actinolite |
| Description | Actinolite is a member of the amphibole family. It has the chemical formula of Ca2(Mg,Fe)5Si8O22(OH)2. Jade (nephrite) is a variety of actinolite. Actinolite is a fairly common mineral. This sample is about 7 cm. |
| Location | USA ▹ California ▹ Alameda County |
| Photographer | Shannon Heinle. 2001-10-25. |
| Collection | University of North Dakota Mineralogy Collection #1394. |
| Key words | actinolite, nephrite, jade, amphibole |
| Tech details | 709 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera. |
| GeoDIL number | 1706 |
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