Tourmaline Crystals- 5.3 g
Starting bid
€ 1
Add to your favourites to get an alert when the auction starts.
Catawiki Buyer Protection
Your payment’s safe with us until you receive your object.View details
Trustpilot 4.4 | 137154 reviews
Rated Excellent on Trustpilot.
Description from the seller
26.5 carats tourmaline crystals from Afghanistan kunar
Untreated and unheated pieces suitable for pendants and wire wrapping
tourmaline is widely considered a powerful metaphysical and healing stone. It is celebrated in spiritual practices for its ability to clear the aura, protect against negative energies, and balance the mind, body, and spirit
Characteristics of Tourmaline
Tourmaline is a complex borosilicate mineral available in a wide variety of colors, making it one of the most diverse gemstones.
Its hardness ranges from 7 to 7.5 on the Mohs scale, making it suitable for everyday jewelry.
Tourmaline has a trigonal crystal system and commonly forms as long, prismatic crystals with distinctive vertical striations.
It has a vitreous (glassy) luster and is usually transparent to translucent, although opaque varieties also exist.
The refractive index ranges from 1.614 to 1.666, with moderate to strong birefringence (0.014–0.040).
The specific gravity generally ranges from 3.00 to 3.26, depending on its chemical composition.
Tourmaline has poor to indistinct cleavage and displays a conchoidal to uneven fracture, giving it good durability.
It exhibits strong pleochroism, where different colors are visible when viewed from different directions.
Many tourmalines show color zoning, with multiple colors occurring naturally in a single crystal.
Tourmaline is pyroelectric and piezoelectric, meaning it can develop an electric charge when heated or subjected to pressure.
It occurs in many colors, including green, pink, red (rubellite), blue (indicolite), yellow, brown, black (schorl), and colorless, as well as multicolored varieties such as watermelon tourmaline.
Major sources include Brazil, Afghanistan, Pakistan, Mozambique, Nigeria, Madagascar, Sri Lanka, Namibia, and the United States.
26.5 carats tourmaline crystals from Afghanistan kunar
Untreated and unheated pieces suitable for pendants and wire wrapping
tourmaline is widely considered a powerful metaphysical and healing stone. It is celebrated in spiritual practices for its ability to clear the aura, protect against negative energies, and balance the mind, body, and spirit
Characteristics of Tourmaline
Tourmaline is a complex borosilicate mineral available in a wide variety of colors, making it one of the most diverse gemstones.
Its hardness ranges from 7 to 7.5 on the Mohs scale, making it suitable for everyday jewelry.
Tourmaline has a trigonal crystal system and commonly forms as long, prismatic crystals with distinctive vertical striations.
It has a vitreous (glassy) luster and is usually transparent to translucent, although opaque varieties also exist.
The refractive index ranges from 1.614 to 1.666, with moderate to strong birefringence (0.014–0.040).
The specific gravity generally ranges from 3.00 to 3.26, depending on its chemical composition.
Tourmaline has poor to indistinct cleavage and displays a conchoidal to uneven fracture, giving it good durability.
It exhibits strong pleochroism, where different colors are visible when viewed from different directions.
Many tourmalines show color zoning, with multiple colors occurring naturally in a single crystal.
Tourmaline is pyroelectric and piezoelectric, meaning it can develop an electric charge when heated or subjected to pressure.
It occurs in many colors, including green, pink, red (rubellite), blue (indicolite), yellow, brown, black (schorl), and colorless, as well as multicolored varieties such as watermelon tourmaline.
Major sources include Brazil, Afghanistan, Pakistan, Mozambique, Nigeria, Madagascar, Sri Lanka, Namibia, and the United States.
Details
Main mineral
Tourmaline
Mineral form
Crystals
Weight
5.3 g
Origin (region/city)
Kunar
Country of origin
Afghanistan
Sold by
