This distinctive wulfenite specimen comes from the Ahumada Mine in the Sierra de Los Lamentos mining district of Chihuahua, Mexico. Dark butterscotch-brown wulfenite crystals rise prominently from a pale cream mineral matrix, including one substantial blocky crystal accompanied by smaller sharply defined crystals. The contrast between the geometric crystals, white crystalline formations, dark mineral inclusions and iron-rich brown matrix creates a rugged and highly dimensional specimen with visual interest from every viewing angle.

The Ahumada Mine and surrounding Sierra de Los Lamentos district are recognized among mineral collectors for producing unusually thick tetragonal wulfenite crystals rather than the extremely thin orange blades associated with many other Mexican localities. This example displays the locality’s characteristic blocky crystal form within an attractive natural matrix.

The specimen is accompanied by its handwritten Frazier’s Minerals label identifying it as wulfenite from the Ahumada Mine in Sierra de Los Lamentos, Chihuahua, Mexico. The label includes the printed Frazier’s Minerals name and Berkeley, California location, providing valuable historical locality and collection documentation.

This specimen was held for many years within the private mineral collection of Joseph Simon, founder of Rainbow XLS in Woodland Hills, California. It entered the Traders Loan & Jewelry collection in 2012 following the dispersal of the Joseph Simon mineral collection and has been preserved within the collection since that time. The specimen was formally documented and curated by Traders Loan & Jewelry in 2026.

The Frazier’s Minerals locality label, specimen box, a copy of Joseph Simon’s Rainbow XLS business card and a specially prepared Traders Loan & Jewelry provenance label are included with the specimen.

Scientific Information

Mineral Species: Wulfenite

Chemical Formula: PbMoO₄ — Lead Molybdate

Crystal System: Tetragonal

Mohs Hardness: Approximately 2.5–3

Locality: Ahumada Mine, Sierra de Los Lamentos, Chihuahua, Mexico

Wulfenite is a lead-bearing mineral composed of lead molybdate. It forms as a secondary mineral within the oxidized zones of lead deposits. Its distinctive tetragonal crystals may develop as thin plates, square tablets or thicker blocky formations such as those displayed on this specimen.

Measurements & Weight

Measurements: Approximately 2.5 Inches Long × 1.75 Inches Wide × 1.25 Inches High

Weight: Approximately 2.8 Ounces / 79.4 Grams

Provenance History

Originally distributed by Frazier’s Minerals of Berkeley, California.

Private Collection of Joseph Simon, founder of Rainbow XLS, Woodland Hills, California.

Entered the Traders Loan & Jewelry collection in 2012 following the dispersal of the Joseph Simon mineral collection.

Documented and curated by Traders Loan & Jewelry in Reseda, California in 2026.

Metaphysical Properties

Within metaphysical traditions, wulfenite is associated with creativity, determination and transforming ideas into physical action. It is often connected with the solar plexus, sacral and root chakras and is used during meditation to encourage motivation, focus and renewed creative energy.

Metaphysical information is included for cultural and historical interest only. No medical or therapeutic benefits are claimed.

Condition Report

This is a naturally formed mineral specimen with irregular edges, matrix separations, small cavities and variations created during its original geological formation and collection. The prominent blocky wulfenite crystal and accompanying smaller crystals are clearly visible and display beautifully against the pale matrix.

Wulfenite is naturally soft, delicate and brittle. The specimen should be securely displayed and handled as little as possible to protect the crystals and reduce direct contact. The paper locality label and specimen box show toning and wear from long-term collection storage and remain important parts of the specimen’s documented provenance.

Safe Handling

Wulfenite is a lead-bearing mineral. This natural mineral specimen is intended for display and collecting purposes. Minimize direct handling and consider wearing disposable gloves whenever the specimen must be moved. Wash hands thoroughly after any contact and avoid touching the face, eating or drinking while handling it. Do not cut, grind, sand, polish or otherwise create dust from the specimen, and never inhale mineral dust. Keep securely displayed and out of reach of small children and pets.

Mineral Identification Disclaimer

Every effort has been made to accurately identify and describe this specimen using available reference materials, labels, provenance, and careful visual examination. While I strive to provide accurate information, I am not a professionally trained mineralogist or gemologist, and inadvertent errors in mineral identification, locality attribution, or other descriptive information may occasionally occur.

Collectors are encouraged to carefully review all photographs and use their own knowledge and judgment when evaluating any specimen. If you have any questions or would like additional photographs or information before purchasing, I will be happy to assist. By purchasing this specimen, the buyer acknowledges that the identification and description represent my best good-faith assessment and are not a professional laboratory determination.