Rubellite
Rubellite is a stunning red or pinkish-red variety of boron silicate elbaite, belonging to the tourmaline group of minerals. Its rich coloration and unique properties make it one of the most sought-after gemstones in the world.
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What is Rubellite Tourmaline?
Elbaite is a sodium and lithium aluminum boron silicate with the chemical formula Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4. It belongs to the six-membered ring cyclosilicate subgroup of the tourmaline family.
Formation and Mineral Associations
Rubellite typically forms in igneous and metamorphic rocks, often in association with minerals such as lepidolite, microcline, and spodumene in granite pegmatites. It can also occur with andalusite and biotite in schist, as well as with molybdenite and cassiterite in massive hydrothermal deposits.
Allochromatic Properties
Elbaite, including rubellite, is an allochromatic mineral, meaning its color is influenced by trace impurities. This characteristic allows it to exhibit a wide range of colors, from pink and red to multicolored zonation. In some cases, microscopic acicular inclusions within elbaite crystals create a cat’s eye effect when cut into cabochons.
Color Variations and Value
Among the elbaite colors, rubellite’s vivid pink to red hues are highly prized. Blue indicolite and green verdelite also hold significant value, but rubellite’s intense coloration and rarity make it a standout choice for collectors and jewelers alike.
The Unique Properties of Rubellite Stone
Tourmaline, including rubellite, is a crystalline boron silicate mineral that combines elements like aluminum, iron, magnesium, sodium, lithium, and potassium. Classified as a semi-precious gemstone, it comes in an impressive variety of colors, with rubellite standing out for its striking red and pink shades.
Crystal Structure
Tourmaline has a six-membered ring cyclosilicate structure and a trigonal crystal system. It typically forms as long, slender to thick prismatic crystals, often triangular in cross-section with curved, striated faces. Some specimens display asymmetrical terminations, a feature known as hemimorphism.
Piezoelectric and Pyroelectric Properties
All hemimorphic tourmaline crystals, including rubellite, are piezoelectric, meaning they can generate an electric charge when subjected to mechanical stress. Many are also pyroelectric, producing a charge in response to temperature changes. These properties make tourmaline unique not only for its aesthetic qualities but also for its scientific applications.
Rubellite vs. Other Tourmalines
What sets rubellite apart from other tourmalines is its ability to retain its vibrant color under various lighting conditions. While pink tourmaline may appear lighter or change hue depending on the light source, rubellite maintains its rich red to pinkish-red tone, adding to its allure.
Rubellite Videos
Frequently Asked Questions
What is the difference between rubellite and ruby?
While rubellite is a vibrant pink to red variety of tourmaline, ruby is a denser gemstone with a deeper red undertone. Rubies are composed of corundum, whereas rubellite belongs to the tourmaline family.
Is rubellite more expensive than ruby?
Rubellite is highly valued for its rarity and unique beauty, but rubies generally command higher prices due to their greater density, hardness, and historical significance.
What are the metaphysical properties of rubellite?
Rubellite is believed to open the heart chakra, promote emotional balance, and encourage compassion. It is also associated with increased physical stamina and endurance.
How durable is rubellite?
With a Mohs hardness of 7 to 7.5, rubellite is a durable gemstone suitable for most types of jewelry. Proper care, including regular cleaning, ensures its longevity.
What is rubellite’s chakra connection?
Rubellite is strongly connected to the heart chakra, symbolizing love, compassion, and emotional well-being. It is often used in spiritual practices to encourage harmony and inner peace.
Natural Rubellite for Sale in Our Gem Shop
We offer custom-made rubellite jewelry, including engagement rings, necklaces, stud earrings, bracelets, and pendants. Please contact us for a quote.
