Black star moonstone

black star moonstone

Black star moonstone meaning and properties.

Buy natural black star moonstone in our shop

A sodium potassium aluminum silicate

Black star moonstone is a sodium potassium aluminum silicate with the chemical formula (Na,K)AlSi3O8 and belongs to the feldspar group.

Its name comes from a visual effect, or sheen, due to the light diffraction within a micro-structure consisting of a regular of feldspar layers (lamellae).

We used moonstone in jewelry for millennia, including ancient civilizations. The Romans admired this gemstone, as they believed it was born from solidified rays of the Moon. Both the Romans and Greeks associated moonstone with their lunar deities. In more recent history. It became popular during the Art Nouveau period. French goldsmith René Lalique and also many others created a large quantity of jewelry using this stone.

The most common moonstone is of the mineral adularia, named for an early mining site near Mt. Adular in Switzerland, now the town of St. Gotthard. The plagioclase feldspar oligoclase also produces stone specimens. It is feldspar with a pearly and opalescent schiller. An alternative name is hecatolite.

Orthoclase and albite

Black star moonstone is composed of two feldspar species, orthoclase and albite. The two species are intermingled. Then, as the newly formed mineral cools, the intergrowth of orthoclase and albite separates into stacked, alternating layers.


Adularescence is a blue sheen phenomena reflecting on the domed cabochon surface of black star moonstone. The phenomena of shimmer comes from the interaction of light with layer of little “albite” crystals in moonstones. While the thickness of layer of these tiny crystals determine the quality of blue shimmer. Therefore, thinner the layer, better the blue flash. This usually appears as a billowy light effect.


Deposits moonstone occur in Armenia (mainly from Lake Sevan), also Australia, the Austrian Alps, Mexico, Madagascar, Myanmar, Norway, Poland, India, Sri Lanka and the United States.

Furthermore, moonstone is the Florida State Gemstone (USA). It was designated as such in 1970 to commemorate the Moon landings, which took off from Kennedy Space Center. Despite it being the Florida State Gemstone, it does not naturally occur in the state.


Feldspars are a group of rock-forming tectosilicate minerals that make up about 41% of the Earth’s continental crust by weight.

It crystallize from magma as veins in both intrusive and extrusive igneous rocks and are also present in many types of metamorphic rock.

Black star moonstone meaning and properties

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

The stone has a strong energy to help you to connect to the divine feminine during meditation. Like the lovely rainbow moonstone crystals they resonate within the highest chakras, which may assist with the development of psychic gifts. Their vibration is effective within the sacral or navel chakra to help with the emergence of fresh and novel ideas.

Black star moonstone under microscope


Is labradorite the same as black moonstone?

Labradorite is classified as a plagioclase and calcium sodium feldspar. Moonstone is an orthoclase and potassium sodium feldspar. That is why moonstone and labradorite are sister stones. they are in the same family but gemologically they are different.

Is black moonstone rare?

It is very rare due to how it comes into being and where you can find them. The black moonstone is the rarest of all moonstones such as the rainbow moonstone and the white moonstone.

How do you know if black star moonstone is real?

Adularescence should, ideally, be blue. The sheen should be visible under light on the top of a cabochon, and it should be easily seen from a wide range of viewing angles.
We make custom made black star moonstone jewelry as engagement rings, necklaces, stud earrings, bracelets, pendants… Please contact us for a quote.

Natural black star moonstone for sale in our shop

We make custom made black star moonstone jewelry as engagement rings, necklaces, stud earrings, bracelets, pendants… Please contact us for a quote.