Gemmology
English | Български
Where am I? > Home > Repository > Actinolite


Gallery view selector

Colour selector
Simple colour schemeredorangey redreddish orangeorangeorangey yellowyellowgreenish yellowyellowish greenslightly yellowish greengreenvery slightly bluish greenbluish greenvery strongly bluish greengreen-blue or blue-greenvery strongly greenish bluevery slightly greenish bluebluevioletish bluebluish violetvioletbluish purplepurplereddish purplestrongly purplish redslightly purplish redcolourlessgreyblack
Actinolite — specimen 0260, photo © NMNHS
Actinolite — specimen 0260, photo © NMNHS

Actinolite — specimen 0260

Origin

East Africa
Tanzania
Actinolite — specimen 0260, locality map
Data

Weight: 1.12 ct; size: 6.74 | 6.71 | 3.01 mm; shape: round; colour: medium yellowish green; slightly greyish; clarity: translucent; cut: fair; treatment: none.
Notes

Clean specimen; cabochon style cut with cat’s eye effect.

Other specimens
Actinolite — specimen 0261Actinolite — specimen 0075

More information from ‘Classification’

Actinolite

Produced by regional or contact metamorphism of magnesium carbonate, mafic, or ultramafic rocks (Anthony et al., 2001—2005). Faceted specimens are extremely rare.


Gemmology — gemstones
Front page | Introduction | Classification | Repository | Library

© 2024 National Museum of Natural History, Sofia (NMNHS)
Use of this website assumes acceptance of our terms of use.

The specimens illustrated in this site do not exist in the collections of the National Museum of Natural History, Sofia.