|
What does the Mohs scale measure? Streak Hardness Luster Cleavage What mineral is the softest on the Mohs Hardness Scale and is used in baby powder? feldspar gypsum calcite talc _______ means that the mineral was formed by nature, not by humans or machine. naturally occurring inorganic processes solid crystal shape If a rock will scratch a fingernail but not a penny, then: It is harder than Calcite but softer than Apatite It is harder than Talc but softer than Fluorite If two minerals produce the same color streak, but one can scratch the other, then..... Their hardness and streaks are the same Their hardness is the same, but their streak is different Their hardness is not the same, but their streaks are. Streak and hardness don't matter, only luster matters. ________ is how the mineral reflects light. cleavage streak magnetic luster What mineral property is being shown? luster streak hardness cleavage Which of the following is NOT true of minerals? they are inorganic they have a crystal structure they are formed in nature they are liquids |