Petroleum Quartz Value Guide

Petroleum Quartz is a remarkable geological specimen from Brazil, characterized by ancient crude oil trapped within the crystal structure during formation. These specimens are highly sought after by mineral collectors for their rare liquid inclusions and their ability to fluoresce under UV light.

What affects the value of Petroleum Quartz?

• The clarity of the quartz and the visibility of the internal petroleum pockets significantly impact the $150 price point.
• The presence of moving bubbles (enhydros) within the oil inclusions adds substantial collector value.
• The intensity and color of the fluorescence when exposed to ultraviolet light.
• The overall size and structural integrity of the crystal point, including the lack of external chips or damage.

How to Identify Petroleum Quartz?

• Look for visible pockets of yellowish or golden liquid trapped within the clear quartz facets.
• Verify the presence of moving bubbles, known as enhydros, within the petroleum-filled cavities.
• Test the specimen under a long-wave UV light to see if the oil inclusions exhibit a bright neon blue or green fluorescence.
• Confirm the origin as Brazil, a primary source for high-quality petroleum-infused quartz crystals.

History of Petroleum Quartz

Petroleum quartz is a fascinating natural phenomenon, often found in regions with rich geological history where crude oil has seeped into quartz deposits during their formation. These crystals are highly prized by collectors for their rare inclusions, which can sometimes exhibit fluorescence under UV light, revealing the ancient oil trapped within.