answers? please and thank you - I’ll make you brainliest

Answer:
1. Use the formula [tex]density=\frac{mass}{volume}[/tex]
2. Gold= 19.3 g/cm³
Muscovite= 2.8g/cm³
Biotite= 3.0g/cm³
Pyrite= 5.0g/cm³
Explanation:
[tex]density=\frac{mass}{volume}[/tex]
[tex]volume=\frac{mass}{density}[/tex]
[tex]mass=density*volume[/tex]