Spectrolite
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Spectrolite is an uncommon variety of labradorite feldspar
A richer range of colors than labradorite (that shows only tones of blue-grey-green) and high labradorescence. It was initially a brand name for material mined in Finland, but is sometimes incorrectly used to describe labradorite whenever a richer display of colors is present, regardless of locality: for example, labradorite with the same play of colors has also been reported from Madagascar.
The difference between Finnish spectrolite gemstone and other labradorites is that crystals of the former have considerably stronger colorfulness than other labradorites, caused by the black base color of feldspar; other labradorites have mostly a transparent base color. This stone is often cut as a lapidary cabochon, similar to plain labradorite, to enhance the effect and is used as a gemstone.
Sample from Finland
History
Finnish geologist Aarne Laitakari (1890–1975) had described the peculiar stone and sought its origin for years when his son Pekka discovered a deposit at
Ylämaa in south-eastern Finland while building the Salpa Line fortifications there in 1940. The Finnish stone exhibits a uniquely vivid iridescence and a full spectrum of colors, hence the name of this gemstone was coined by the elder Laitakari.
After the Second World War, it has become a significant local industry. In 1973 the first workshop in Ylämaa began cutting and polishing for jewels.
A hardness of 6 to 6.5 on the Mohs scale and a specific gravity of 2.69 – 2.72.
A very high grade of dark based kabradorite is found only in Finland. The name “Spectrolite” is a trade name given to this material by the Finns, and only this material can truly be called by this name.
Geological formation of spectrolite
Spectrolite crystallizes within certain igneous rock formations, forming in an environment rich in plagioclase feldspar. Over thousands of years, geological pressure and cooling processes allow small mineral inclusions to align in layered structures. These microscopic layers then reflect light at different wavelengths, producing the vibrant flashes of color characteristic of spectrolite. In Finland, this gem is found in ancient bedrock that has undergone tectonic shifts, creating ideal conditions for spectrolite’s exceptional labradorescence and its distinct, dark base tone.
In this region, each piece of spectrolite reflects Finland’s rich geological history. The stone’s coloration is influenced by internal fractures, tiny metallic inclusions, and precisely oriented mineral lamellae. This unique composition of layers is what gives Finnish spectrolite its striking optical effect, sometimes displaying virtually every shade of the rainbow.
Identifying quality spectrolite
When assessing spectrolite, gem enthusiasts look for a broad range of vivid colors coupled with high clarity and minimal surface imperfections. The richer and more saturated the colors appear when the stone is tilted under light, the higher its quality. Fine-quality stones also exhibit crisp color boundaries, without blurry transitions or dull patches in the iridescent areas. While natural fissures can occur, stones that are cut to minimize these fissures often display a cleaner and more intense play of color.
Because spectrolite is slightly softer than other popular jewelry stones, the manner in which it is cut is crucial. Cabochon cuts are preferred to accentuate the phenomenon of labradorescence. The smooth dome shape maximizes the interplay of light. Larger specimens can be fashioned into ornamental objects or statement jewelry pieces that let the full spectrum of colors shine.
How to care for your spectrolite
Like many feldspar gemstones, spectrolite should be handled with care to prevent scratches. Simple precautions can ensure its lasting beauty. Avoid exposing the stone to sudden temperature changes, harsh chemicals, or prolonged direct sunlight. For cleaning, use mild soap and lukewarm water with a soft cloth or brush, gently buffing away any debris. Storing spectrolite separately from other jewelry helps keep it from being accidentally scratched.
Spectrolite labradorite meaning and healing properties benefits
The following section is pseudo scientific and based on cultural beliefs.
Excellent for strengthening intuition-promoting psychic abilities. Powerful in revealing the truth behind illusions, the stone banishes fears and insecurities, and strengthens faith in the self and trust in the universe.
The astrological associations of spectrolite are as follows:
- Astrological signs: Scorpio, Sagittarius, and Leo
- Season: Winter
- January moon: Wolf moon
- Chakras: Base chakra
- Zodiac: Leo, Scorpio, Sagittarius
- Planet: Uranus
Spectrolite stone under microscope
FAQ
Is spectrolite the same as labradorite?
It is a form of labradorite only found in Finland. The name “spectrolite” is actually a brand name, or gemological name, of labradorites mined there. Both stones have dark base colors, but labradorite’s base is more transparent and spectrolite’s is more opaque.
What type of stone is spectrolite?
The stone quarried from the rugged bedrock of Ylämaa in the South East of Finland is a Finnish gemstone which meets the three basic requirements: beauty, hardness and rarity. The gemstone is a labradorite feldspar, a member of the albite-anorthite series with approximately 55% anorthite.
What chakra is labradorite associated with?
Labradorite radiates a predominant blue crystal energy that stimulates the throat chakra, the voice of the body. It is, in essence, a pressure valve that allows the energy from the other chakras to be expressed.
What is spectrolite crystal used for?
Use crystal to hold the energy of leadership, courage, transformation, breakthrough and creativity. The energy emits a constant reminder to recognize and fulfill your potential. There is a rainbow of possibilities hidden within you.
What does spectrolite look like?
The crystal exhibits a richer range of colors than other labradorites as for instance in Canada or Madagascar (which show mostly tones of blue-grey-green) and high labradorescence. The term is sometimes incorrectly used to describe labradorite whenever a richer display of colors is present, regardless of locality.
Natural spectrolite for sale in our gem shop
We make custom made spectrolite as engagement rings, necklaces, stud earrings, bracelets, pendants… Please
contact us for a quote.
