Nuummit(cabochon 18/13/5,5 mm) orthoamfibol.Greenland.Nuuk(Godthab)

The cost for cabochon.
In a single instance.
18 mm length
13 mm - width
5,5 mm - height
Cabochon without backing.

The cabochon of Greenland nuumite is presented.
There are many fine-needle golden, blue or yellow - green iridescent crystals on one side of the cabochon
Unfortunately, there is no bright polarization on the cabochon surface.
Zonally translucent.
All the irrigation of this cabochon can be observed from the photo in the store.
We can show the cabochon in more detail on the video.

The mineral is valued for its great rarity, uniqueness, unusual inclusions - yellow, copper, golden, green, blue - iridescent iridescence, creating the effect of iridescence.

The only place on our planet where nuummite is mined is Greenland, the Nuuk region, to which nuummite owes its name.
Sometimes other dark stones with various inclusions are given out as nummites – for example, larvikites, etc.
Therefore, only Greenlandic nuumite can be a real nuumite, everything else is not nuumite.

To date, nuummite is very rare and popular in the market of stones.
The most popular Greenland's oldest stone, Nuummite or iridescent amphibolite, is most likely a trade name, not the name of the mineral.
This metamorphic rock ,formed from a mixture of two minerals itemfirepay group( anthophyllite and gedrite( getit)) is a relatively rare amphiboles.
Hardness on a scale of 5, 5 - 6.
It can be translucent, but it is opaque.