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WikiCards · Card list · Science cards · Iron(II,III) oxide
Uncommon card · Science
Iron(II,III) oxide, an Uncommon card
Iron oxide, or black iron oxide, is the chemical compound with formula Fe3O4.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 66
- DEF
- 54
- Power
- 120
- Wikipedia reads a year
- 35,000
Power 120 (ATK + DEF): stronger than 55 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- It occurs in nature as the mineral magnetite.
- It is one of a number of iron oxides, the others being iron oxide, which is rare, and iron oxide which also occurs naturally as the mineral hematite.
- It contains both Fe2+ and Fe3+ ions and is sometimes formulated as FeO·Fe2O3.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Iron(II,III) oxide article was read about 35,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 66 and blocks with 54: each hit it takes is cut by 22 %.
How to get Iron(II,III) oxide
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Iron(II,III) oxide in the power ranking, all domains together.
- AirbrushUncommon · Arts · ATK 68 DEF 52
- Amami ŌshimaUncommon · Nature · ATK 64 DEF 56
- DancesportUncommon · Society · ATK 67 DEF 53
- Yonghe TempleUncommon · History · ATK 64 DEF 56
- Radio galaxyUncommon · Science · ATK 68 DEF 52
- Camel racingUncommon · Society · ATK 61 DEF 59
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Iron(II,III) oxide (revision), CC BY-SA 4.0. Photo : Leiem, CC BY-SA 4.0, Wikimedia Commons.
