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Across 1. the scale of mineral hardness from 1 to 10 6. the 'look of glass' mineral luster 9. any of the elements/compounds that make up Earth 11. molten rock that pours out onto Earth's surface from below 13. mineral group containing metals combined with oxygen (ex: hematite, corundum) 14. minor mineral property, its when a mineral glows colorfully under ultraviolet light 16. minerals can form by ___ of molten rock 18. along with heat, this can cause formation of minerals (ex: diamond) deep inside Earth 20. mineral group of compounds formed from metal and group 17 element (ex: rock salt, fluorite) 21. describes a hot water solution from which minerals can form when it cools 22. mineral that is a '10' on Mohs scale 28. describes the way light reflects from a mineral's surface (metallic or nonmetallic) 29. characteristic of minerals: nonliving/without carbon 30. the #2 element in Earth's crust by mass/weight 32. characteristic of minerals: has a specific ___ 33. some minerals 'fizz' when a drop of ___ is placed on them 34. mineral group that forms the majority of metal ores, a metal + sulfur (ex: pyrite, galena) 35. molten rock below Earth's surface 36. mineral group containing the SO4 structure (ex: anhydrite, barite) 37. simplest unit cell (has all sides same length and 90 degree angles

Down 2. resistance of a mineral to being scratched 3. mineral group composed of pure elements (___ elements) 4. unit cell that can look like a 'saltine cracker' box (end square, but long on one side) 5. tendency of a mineral to break into irregular pieces 7. characteristic of minerals: has definite shape/volume 8. mineral that is a '1' on Mohs scale 10. six-sided unit cell of crystals 12. formation of minerals from once-dissolved substances when water evaporates 15. property of minerals that is LEAST useful for identifying them 17. unit cell that looks like a 'cereal box' (all sides different length, 90 degree angles 19. characteristic of minerals: has orderly structure 22. synonym for 'specific gravity', it is a mineral's mass per unit volume (m/V) 23. characteristic of minerals: not manmade, but ___ 24. most important mineral group, contains the SiO4 structure (ex: quartz, feldspar) 25. tendency of a mineral to break along flat surfaces 26. the #1 element in Earth's crust by mass/weight 27. second largest mineral group, containing the CO3 structure (ex: calcite, azurite) 30. color of the powdered form of a mineral (when rubbed on unglazed porcelain) 31. unit cells that 'lean' are either mono- or tri-___