Loading
by BlastRoom
Name ore minerals, judge what makes a gem, and reason about mining methods and mineral resources.
#earth_space_science
20 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A heavy, dull reddish-brown mineral specimen leaves a red-brown streak on an unglazed plate and is smelted in a blast furnace. Which mineral is this ore?
Aluminum metal is refined from a chalky ore that forms through the intense chemical weathering of aluminum-rich rocks in tropical climates. Which ore is this?
A dense, gray, cubic-cleaving mineral specimen with a high specific gravity is the main source of lead. Which mineral is it?
Zinc metal is smelted from a brownish-yellow to black mineral with a resinous luster that often occurs alongside galena in the same ore veins. Which mineral is it?
A brassy, metallic yellow specimen duller and softer than pyrite is crushed and smelted to extract copper. Which mineral is it?
A bright red, very dense mineral is crushed and roasted to release liquid mercury metal. Which mineral is it?
Two deep-red cut stones look almost identical: one is corundum, the other is garnet, yet the corundum stone sells for far more. What explains the price difference?
Diamond and graphite are both pure carbon, yet only diamond is prized as a gemstone. What makes diamond a gem while graphite is not?
A jeweler prices a purple amethyst crystal far higher than an ordinary piece of milky quartz, though both are the same mineral. Why is only the amethyst considered a gem?
Emerald and colorless beryl are the same mineral species, yet emerald sells for vastly more per carat. What accounts for the difference?
Most olivine occurs as small, included grains inside basaltic rock, but a few clear, well-formed crystals are cut into peridot gemstones. What separates gem-grade olivine from ordinary olivine?
An ore body forms a flat layer only 20 meters below the surface and spreads across several square kilometers. Which extraction method fits this deposit?
A narrow, gold-bearing vein only a meter wide follows a fault plane hundreds of meters below the surface. Which extraction method fits this deposit?
A uranium ore is disseminated through a permeable sandstone layer deep underground, with no way to physically reach it economically. Which extraction method fits this deposit?
Dense gold particles have been washed out of solid rock and concentrated by flowing water in loose river gravel. Which extraction method fits this deposit?
A rich, high-grade copper ore body begins 900 meters below the surface, under thick barren rock, and continues deeper. Which extraction method fits this deposit?
A company must decide whether a body of iron-bearing rock counts as an ore deposit. Which pair of facts actually settles the question?
One copper deposit is high grade but buried deep underground with expensive access. Another is lower grade but sits at the surface and is cheap to mine. Why might the surface deposit be better to develop?
A deposit of low-grade copper-bearing rock was judged unprofitable to mine last year, but this year the market price of copper has doubled. Why might the same rock now count as ore?
A rock specimen shows scattered flecks of a copper mineral spread through the surrounding rock. Can visual inspection alone confirm this rock is an ore?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
The Rock Cycle
40 questions
