| In magnesium-rich rocks, tremolite, anthophyllite, and hornblende may exist together. |
| Magnesium-rich amphiboles such as anthophyllite, cummingtonite, and tremolite are colourless or light in colour. |
| Intermediate amphibole compositions do not exist between anthophyllite and the tremolite-actinolite series. |
| The presence of several amphibole minerals, such as tremolite, actinolite, anthophyllite, was confirmed. |
| Minerals from magnesium-rich ultramafic rocks are chlorite, anthophyllite, and talc. |
| At higher grades of regional metamorphism, the amphibole anthophyllite breaks down to form magnesium-iron orthopyroxenes. |
