What happens when you tried to scratch glass with the calcite? Question options: a. could not scratch glass plate with the calcite b. easily scratched glass plate with the calcite c. bared down really hard and scratched glass with the calcite
Since it's harder than the copper, then try to scratch the glass plate with the calcite. BE SURE TO PUT THE GLASS DOWN FLAT ON THE TABLE SO IT DOESN'T BREAK IN YOUR HAND AND CUT YOU!!!!! If the mineral is close to the same hardness as the glass, you may have to bare down pretty hard to get it to scratch the glass. Be sure to try to scratch the glass in the middle -- NOT near the edge where you might chip off the glass.use your fingernail to feel for a groove on the glass plate. No groove? it's softer than glass. What happens when you tried to scratch glass with the calcite?
Question options:
a. could not scratch glass plate with the calcite
b. easily scratched glass plate with the calcite
c. bared down really hard and scratched glass with the calcite
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