Mackayite
A variety of Minerals
What is Mackayite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Mackayite 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.
Mackayite Localities Map
See where Mackayite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Pale bottle-green, olive green, brownish green, greenish black; greenish yellow to yellowish green in transmitted light.
- Hardness (Mohs)
- 4.5
- Density
- 5.32 g/cm³
- Streak
- Pale green
Chemical Properties
- Chemical Formula
- Fe3+(Te4+2O5)(OH)
- Elements
- Fe, H, O, Te
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Mackayite FAQs
How do I identify Mackayite?
Mackayite can be identified by its hardness of 4.5 on the Mohs scale, Pale bottle-green color. Look for these key characteristics when examining specimens.
What color is Mackayite?
Mackayite typically appears in Pale bottle-green, olive green, brownish green, greenish black; greenish yellow to yellowish green in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Mackayite?
Mackayite has a hardness of 4.5 on the Mohs scale. This gives it moderate hardness.
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