Wampenite

Chemical formula: C₁₈H₁₆

Wampenite is a naturally occurring aromatic hydrocarbon, one of the few organic minerals, found as yellowish, resinous coatings.

## Characteristics Wampenite is an organic mineral, specifically a polycyclic aromatic hydrocarbon with the formula C₁₈H₁₆. It occurs as very small, resinous, yellowish to yellowish-brown flakes and coatings on sandstone. It is soft and light, and its aggregates rarely exceed 1 mm. Due to its nature and small size, it is primarily of scientific interest. ## Physical Properties This mineral is characterized by very low hardness, estimated at about 1 on the Mohs scale, which means it is extremely soft. It has a resinous luster and is translucent. Its density is very low, which is typical for organic substances. ## History and Name The name Wampenite comes from its type locality – Wampen Mountain in Bavaria (Germany), where it was discovered. It was first described in 2015 by a team of mineralogists, and its name and status as a new mineral were approved by the International Mineralogical Association (IMA). ## Uses Due to its extreme rarity and microscopic size, wampenite has no commercial or industrial applications. It is solely an object of scientific research and a valuable acquisition for specialized systematic collections.

Properties

Mohs hardness: 0-1
Color: Pale amber
Luster: Resinous
Streak: Yellow
Density: 1.15
Cleavage: {001}
Fracture: Irregular/Uneven
Transparency: Transparent
Crystal system: Monoclinic

Diagnostic features

## Identification Identification of wampenite is primarily based on its appearance – it forms characteristic, microscopic, resinous, yellowish coatings and flakes on the host rock (sandstone). Its extreme softness and low specific gravity are also indicators. However, definitive identification requires advanced analytical methods, such as Raman spectroscopy, due to its similarity to other natural hydrocarbons. ## Distinguishing from Similar Minerals It can be confused with other rare organic minerals, such as kratochvílite or idrialite, which also form similar coatings. Native sulfur can form yellow coatings but is harder and more brittle. Distinguishing it from these minerals is impossible without specialized laboratory equipment. ## Crystal Forms Wampenite forms very small, thin, bladed or flaky crystals, usually grouped into irregular aggregates and coatings. Single, well-formed crystals are extremely rare and microscopic in size.

Geological environment

## Genesis Wampenite forms through low-temperature geological processes, likely associated with the slow decomposition of organic matter (e.g., bitumen) within sedimentary rocks. In its type locality, it was found in fissures of Cretaceous sandstone. ## Mineral Associations In its type locality, wampenite co-occurs with calcite, quartz, and bituminous substances. ## Localities The only confirmed occurrence of wampenite in the world is its type locality: Wampen Mountain, near Fischbach am Inn in Bavaria, Germany.

Rarity

Extremely rare

For collectors

## Quality Criteria For wampenite, the only criterion for evaluation is its mere presence on a fragment of the host rock. Since it occurs as microscopic coatings, specimens are assessed based on the richness and extent of these coatings visible under magnification. Every confirmed specimen is extremely valuable from a scientific and collecting perspective. ## Popular Localities The only source of specimens is the type locality in Bavaria, Germany. Material from this location is extremely difficult to obtain.

Care and storage

## Cleaning Specimens containing wampenite should not be cleaned mechanically or chemically. Any attempts at cleaning may irreversibly damage the delicate mineral coatings. Only very careful dust removal using a soft brush or a photographic air blower is permissible. ## What to Avoid Avoid contact with water, organic solvents, chemicals, and all detergents. The mineral is very soft and sensitive to elevated temperatures, which can cause it to melt or decompose. It should be protected from direct sunlight and moisture. ## Storage Specimens should be stored under stable conditions, preferably in a sealed, closed "micromount" box, which protects against dust, mechanical damage, and changes in humidity. Do not touch the coatings with fingers.