Nuummite
An unofficial name for a dark metamorphic rock with elongated, golden iridescent crystals composed of alternating lamellae of anthophyllite and gedrite (ortho-amphiboles). Its appearance is…
Tag: copperlite
Coppernite / copperlite
Commercial name for a dark gray-green to brown rock with black crystals/grains and sometimes angular crystals with a coppery flash (hence the name). Also sold…
Chinese / Indian nuummite
Commercial name for a gabbro rock that resembles the true nuummite from Greenland but which has been identified by laboratory examination not to be nuummite.…
Analysis: Nuummite
Find out all about Greenland nuummite and similar rocks! Learn how to recognize real nuummite and how to distinguish lookalikes from China and India. …
