Rarest Crystal in the world

Whether you are looking to buy or just want to know what the rarest crystal is , this articles for you.

I will also share with you 9 other rare crystals and what makes them rare.

What Makes Crystals Rare?

We consider a crystal rare when it has certain properties. Here are the main ones….

Geological Rarity

Some crystals need rare specific conditions for them to form. This includes the combination of temperature, pressure, and chemical environment. So we can only find them in a few places on earth.

Size and Quality

Large crystals of high quality (clarity, color, lack of defects) are rarer than smaller, flawed ones. The conditions for the growth of large, perfect crystals are much less common.


The location of crystal deposits can make some crystals rare. Deposits that are remote, in politically unstable regions, or in protected areas can limit the availability of certain crystals.

Market Demand:

Crystals that people want for their aesthetic value, use in jewelry, or metaphysical properties can become rare in the market due to high demand and limited supply.

An example of this is diamonds. Diamonds are abundant, however through clever marketing, they have become desirable.

Mining Difficulty

The difficulty in extracting certain crystals without damaging them can contribute to their rarity.

Some crystals are delicate or occur in hard-to-reach geological formations, making mining challenging and expensive. If mined incorrectly we end up with a poor gem quality.

Taafeite The Rarest Crystal in the World


The crystal Taafeite is the rarest crystal because it fits many of the above criteria. We can only find it in a few places on earth,  Sri Lanka and Tanzania. It is difficult to mine without damaging it.

Taafeite was first discovered in 1945. The story of its discovery is unique and revolves around its initial misidentification.

Here’s a brief history and the events leading up to the discovery of Taafeite…



We initially thought Taafeite was spinel. Spinel is another type of gemstone that shares some visual similarities with Taafeite. The distinguishing feature of Taafeite, is it’s double refraction, spinel does not have this. People did not notice this characteristic at first.

Recognition by Richard Taaffe

Richard Taaffe discovered the stone’s true nature. Taaffe is an Austrian gemologist, who bought a supposedly spinel gemstone in 1945. Upon closer examination, he noticed its unusual optical properties. This led to the realization that the stone was not spinel.

Scientific Analysis and Naming

After Richard Taaffe recognized it’s unique properties, further analysis confirmed that the gem was an previously unknown mineral.

It was named “Taafeite” in honor of Richard Taaffe. This was rare in itself, marking one of the few times a mineral was named after a gemologist rather than a scientist or location.

Characteristics and Rarity

Optical Properties

Taafeite has double refraction. This means the crystal splits light into two directions. It also has a range of colors, from mauve or lilac to deep violet and even red.


Taafeite is the rarest gemstones in the world. It was so rare when it was discovered that it was the only known specimen. Since then, we have found additional specimens (around 50), but it remains extremely rare, especially in colors other than mauve.

9 of The Other World’s Rarest Crystals

Taaffeite is the rarest crystal in the world, however it is not the only rare crystal.

How rare we consider a crystal changes based on new discoveries, changing market demands, and depletion of known deposits.

The following are among the rarest crystals and rare gemstones, known for their uniqueness, beauty, and the limited conditions under which they form…

Painite crystals

Painite crystals is a rare crystal

Once considered the world’s rarest mineral. Painite has an orange-red to brownish-red color and was first discovered in Myanmar in the 1950s. For decades, we only had few specimens.

Red Beryl (Bixbite)

Red Beryl

Found in specific regions of Utah, New Mexico, and Mexico, red beryl is a rare stone because of its specific geological formation conditions. It’s much rarer than diamonds and highly valued.



The state gem of California, where it was first discovered. You can only find this blue to purple gemstone in a few locations around the world, making it highly prized and rare.



A bluish-green to greenish-blue stone that was first discovered in Madagascar. It’s transparency and color make it a sought-after gem for collectors.


Another rare crystal Serendibite

An extremely rare gemstone that was first found in Sri Lanka. Its colors range from deep blue to greenish-blue. The original deposits are nearly depleted, adding to its rarity and value.



While jade is relatively common, jadeite, the purest and most vibrant form of jade, is exceedingly rare. The finest jadeite is known as “Imperial Jade,” a translucent emerald-green jadeite from Myanmar.


Alexandrite a rare crystal

A rare chrysoberyl variant that changes color from greenish in daylight to reddish under incandescent light, due to rare chromium deposits. Its unique optical properties and rarity make it highly valued.



A rare aluminum borate mineral with variable fluoride and hydroxide ions. It was first discovered in Siberia and is prized for its clarity and colors, ranging from colorless to blue and yellow.



An extremely rare crystal belonging to the taaffeite family, found in Australia, Greenland, Madagascar, Sri Lanka, and Tanzania. It is known for its range of colors, including greyish, green, and violet.

These crystals are valued not only for their beauty and rarity but also for their unique properties and the specific conditions required for their formation. Rarity and value can change as new deposits are discovered or as existing ones are depleted.

Rarest Crystal and Other Rare Gemstones Take Away

The rarest crystal is Taafeite, which was discovered in 1945. There are only 50 pieces in the world at the moment.

Although it is the rarest, there other rare crystals as well. They are considered rare because either they are hard to mine or not abundant in nature.

And some are valued for their exceeding beauty and healing properties.

Remember, their rarity will change if we find an abundant source or if we discover other crystals that even more rare to find.