Nuummite crystal stone meaning and properties

Nuummite crystal stone meaning and properties.

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Nuummite is a rare metamorphic rock that consists of the amphibole minerals gedrite and anthophyllite. It is named after the area of Nuuk in Greenland, where it was found.


It is usually black in colour and opaque. It consists of two amphiboles, gedrite and anthophyllite, which form exsolution lamellae that give the rock its typical iridescence. Other common minerals in the rock are pyrite, pyrrhotite and chalcopyrite, which form shimmering yellow bands in polished specimens.

In Greenland the rock was formed by two consecutive metamorphic overprints of an originally igneous rock. The intrusion took place in the Archean around 2800 million years ago and the metamorphic overprint was dated at 2700 and 2500 million years ago.


The rock was first discovered in 1810 in Greenland by the mineralogist K. L. Giesecke. It was defined scientifically by O. B. Bøggild between 1905 and 1924. True Nuummite is only found in Greenland. Due to its iridescent nature, this rare stone is sought after by gemstone dealers, collectors and those interested in the esoteric. It is often sold with tumble finishing.


Category Mineral variety
Formula: (Mg2)(Mg5)Si8 O22 (OH)2

Nuummite identification

Formula mass: 780.82 gm
Color: Black, grey
Twinning: None
Cleavage: Perfect on 210
Fracture: Conchoidal
Mohs scale hardness: 5.5 – 6.0
Luster: Vitreous / glossy
Diaphaneity: opaque
Density: 2.85 – 3.57
Refractive index: 1.598 – 1.697 Biaxial
Birefringence: 0.0170 – 0.230

Nuummite stone meaning and crystal metaphysical healing properties benefits

The following section is pseudo scientific and based on cultural beliefs.

The stone has a potent vibration, and has become known as the sorcerers stone. Once you begin to resonate with its powerful energy you may understand why. This is an ancient stone that embodies strong metaphysical properties. Within this dark stone is a strong element of the magical and mystical vibration of the earth.

Nuummite Feng Shui

Nuummite utilizes Water energy, the energy of stillness, quiet strength, and purification. It embodies potentialities unrealized. It is yielding, formless, yet powerful. The Water element brings power of regeneration and rebirth. It is the energy of the circle of life.

Use turquoise crystals to enhance any space that you use for repose, calm reflection, or prayer. Water energy is traditionally associated with the North area of a home or room. It is associated with the Career and Life Path area, its flowing energy assuring a balance of energy as your life unfolds and flows.

Nuummite, from Greenland

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