What is yarlongite used for?

Yarlongite is mainly of interest to mineral collectors and researchers due to its unique chemical composition and crystal structure.

Can yarlongite be worn as jewelry?

Yarlongite is not typically used in jewelry due to its rarity and lack of suitable physical properties for such applications.

How can I identify real yarlongite?

Yarlongite can be identified through its hexagonal crystal system, chemical composition, and specialized mineralogical analysis due to its rarity and lack of common imitations.

Where is yarlongite found?

Yarlongite is primarily found in the Yarlung Tsangpo River region in Tibet, from which it derives its name.

Yarlongite

(Cr₄Fe₄Ni)C₄

Hexagonal IMA approved

Yarlongite is a rare hexagonal mineral with the chemical formula (Cr4Fe4Ni)C4, composed of chromium, iron, nickel, and carbon. It belongs to the hexagonal crystal system and is classified in the Strunz system as 1.BA.30 and in the Dana system as 1.1.25.3. This mineral is a tectosilicate and is notable for its metallic luster and dark coloration. It has a relatively high density and hardness, though specific values are not provided. Yarlongite is part of a broader group of minerals formed under high-pressure and high-temperature conditions, and it is primarily of scientific interest due to its rarity and unique composition.

Composition

Composizione (% in peso)

FeIron41.5%
CrChromium38.7%
NiNickel10.9%
CCarbon8.9%

Overview

Etymology

Yarlongite is named after the Yarlung Tsangpo River, a significant geographical feature in the region where the mineral was discovered.

How to recognize it

Yarlongite can be identified by its metallic luster and dark color. Its hardness is not specified, but it is likely to be relatively high given its composition. A streak test may help distinguish it from other metallic minerals. Due to its rarity, it is often confused with other metallic minerals of similar appearance, but its unique chemical composition can be confirmed through laboratory analysis.

Trivia

Yarlongite is named after the Yarlung Tsangpo River, highlighting its geographical significance. Its chemical formula includes a combination of chromium, iron, nickel, and carbon, making it chemically distinct. The mineral's hexagonal crystal system and metallic luster add to its scientific intrigue, especially given its rarity and the specific conditions required for its formation.

Indicative prices

Yarlongite is an extremely rare mineral, primarily collected for scientific or specialized mineralogical purposes. Prices are not commonly listed in the commercial gem or jewelry market. For high-quality mineral specimens, indicative values may range from EUR 500 to EUR 2,000 or more, depending on origin, clarity, and rarity. Jewelry or gemstone use is virtually nonexistent, and values vary by source.

Frequently asked questions

Yes, yarlongite is considered rare, with limited documented occurrences, primarily from the Yarlung Tsangpo River region in Tibet.