Downeyite
A variety of Minerals
What is Downeyite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Downeyite 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.
Downeyite Localities Map
See where Downeyite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colourless (red - included selenium, yellow - included sulfur)
- Density
- 4.146 g/cm³
Chemical Properties
- Chemical Formula
- SeO2
- Elements
- O, Se
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Downeyite FAQs
How do I identify Downeyite?
Downeyite can be identified by its Colourless (red - included selenium color. Look for these key characteristics when examining specimens.
What color is Downeyite?
Downeyite typically appears in Colourless (red - included selenium, yellow - included sulfur). Color can vary depending on impurities and formation conditions.
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