WikiCards · Card list · Nature cards · Chalk
Uncommon card · Nature
Chalk, an Uncommon card
Chalk is a soft, white, porous, sedimentary carbonate rock. It is a form of limestone composed of the mineral calcite and originally formed under the sea by the accumulation and lithification of hard parts of organisms, mostly microscopic plankton, which had settled to the sea floor.
- Rarity
- Uncommon
- Domain
- Nature
- ATK
- 67
- DEF
- 66
- Power
- 133
- Wikipedia reads a year
- 150,000
Power 133 (ATK + DEF): stronger than 65 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- Chalk is common throughout Western Europe, where deposits underlie parts of France, and steep cliffs are often seen where they meet the sea in places such as the Dover cliffs on the Kent coast of the English Channel.
- Chalk is mined for use in industry, such as for quicklime, bricks and builder's putty, and in agriculture, for raising pH in soils with high acidity.
- It is also used for "blackboard chalk" for writing and drawing on various types of surfaces, although these can also be manufactured from other carbonate-based minerals or gypsum.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Chalk article was read about 150,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 67 and blocks with 66: each hit it takes is cut by 26 %.
How to get Chalk
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 Nature cards
Cards close in power
The cards just above and just below Chalk in the power ranking, all domains together.
- NachosUncommon · Society · ATK 69 DEF 64
- Philippe AghionUncommon · Science · ATK 67 DEF 66
- Adiabatic processUncommon · Science · ATK 75 DEF 58
- ChevrotainUncommon · Nature · ATK 67 DEF 66
- Gabby ThomasUncommon · Society · ATK 72 DEF 61
- Gretchen CorbettUncommon · Arts · ATK 66 DEF 67
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Nature cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Chalk (revision), CC BY-SA 4.0. Photo : kallerna, CC BY-SA 4.0, Wikimedia Commons.

