How can I identify westerveldite?

Westerveldite can be identified by its metallic luster, dark color, and orthorhombic crystal system, often forming prismatic or tabular crystals.

What is westerveldite used for?

Westerveldite is primarily of interest to mineral collectors and researchers due to its chemical composition and crystal structure.

Can westerveldite be worn as jewelry?

Westerveldite is not typically used in jewelry due to its softness and metallic nature, which make it unsuitable for regular wear.

Where is westerveldite found?

Westerveldite is found in a few localities worldwide, often associated with hydrothermal veins and metamorphic rocks.

Leon Hupperichs·CC BY-SA 3.0·Wikimedia

Westerveldite

(Fe,Ni,Co)As

Orthorhombic IMA approved

Westerveldite is a rare mineral with the chemical formula (Fe,Ni,Co)As, indicating it is an arsenide composed primarily of iron, nickel, and cobalt. It crystallizes in the orthorhombic crystal system and belongs to the space group Pmcn. Classified under the Strunz system as 2.CC.15 and the Dana system as 2.8.19.1, it is a metallic mineral with a lustrous appearance. Its physical properties include a metallic luster, dark gray to black color, and a hardness that is typically low to moderate. Westerveldite is a member of the sulfosalt mineral group, known for its complex chemical composition and limited natural occurrences.

Composition

Composizione (% in peso)

AsArsenic57.3%
FeIron42.7%

Overview

Etymology

Westerveldite is named after Jan Westerveld, in recognition of his contributions to mineralogy. The mineral was approved by the International Mineralogical Association (IMA), but the specific year of its discovery or naming is not provided in the facts.

How to recognize it

Westerveldite can be identified through its metallic luster and dark gray to black color. It has a relatively low hardness on the Mohs scale, though the exact value is not provided in the facts. A streak test may reveal a dark metallic streak. Due to its rarity and similar appearance to other metallic arsenides, it may be confused with minerals like niccolite or cobaltite. Its density and chemical composition can be further analyzed in a laboratory setting for accurate identification.

Trivia

Westerveldite is notable for its unique chemical composition, combining iron, nickel, and cobalt in a single arsenide structure. It belongs to the orthorhombic crystal system, which is less common among metallic minerals. Its classification under the Strunz and Dana systems highlights its distinct mineralogical identity. However, due to its rarity, it remains a subject of interest for mineral collectors and researchers.

Frequently asked questions

Westerveldite is considered a rare mineral, typically found in limited localities and not commonly available in the mineral market.