Oil Shale
A variety of Sedimentary
What is Oil Shale?
Oil Shale is a fine-grained sedimentary rock made of organic matter that can contain substantial amounts of oil and combustible gas. Shale oil is very similar to petroleum and can be refined into many different substances such as diesel fuel and gasoline, as well as other commercial products such as sulfur and ammonia.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Oil Shale before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Oil Shale Localities Map
See where Oil Shale is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Health & Safety Information
- ⚠️Oil Shale is toxic due to its Radioactivity.
- ⚠️It is recommended to use a Geiger counter to measure radiation levels before handling. Wear a mask to prevent lung exposure to radioactive dust. Wash your hands and clothes after handling it. Store it in a closed box in a well-ventilated area away from people.
Quick Facts
Physical Properties
- Color
- Brown, black
- Hardness (Mohs)
- 2 - 3
- Density
- 1.5 - 2.8 g/cm³
Also Known As

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Oil Shale FAQs
How do I identify Oil Shale?
Oil Shale can be identified by its hardness of 2 - 3 on the Mohs scale, Brown color. Look for these key characteristics when examining specimens.
What color is Oil Shale?
Oil Shale typically appears in Brown, black. Color can vary depending on impurities and formation conditions.
How hard is Oil Shale?
Oil Shale has a hardness of 2 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.


