Complete Clue List
Across
1. SiO2
5. Essential element for silicates
10. Calcium carbonate
11. Radioactive decay product
12. Barium sulfate
14. 3.14159...
15. Death of a bubble
16. Element in nickeline
18. Aka "sphene"
20. Cation in fayalite and pyrite
22. Polka ___
23. Halite anion
24. Date of birth
25. Feldspathoid, KAlSi2O6
29. Element in spodumene
30. Like muscovite
33. Anorthite and albite
36. Distinctive color of glaucophane
37. Sodic amphibole, Na2Fe3Fe2Si8O22(OH)2
42. Common metamorphic mineral, X3Y2Si3O12
Down
2. "TV rock"
3. Red corundum
4. Accessory mineral
6. Glacier mineral
7. Na feldspar
8. Pyroxene containing calcium and magnesium.
9. Common in metamorphosed ultramafics
13. Colored by transition metal impurities
17. id est
19. Trioctahedral sheet silicate
20. Common mineral
21. Abbreviation for 7 down
23. Covellite comp.
26. Clay mineral
27. Element in 10 across
28. Volume % of minerals in a rock
30. Porphyro____
31. Obscure element often found with Pt
32. Alternating current
34. U/Pb indicates this property
35. Pyrite crystals often form in the shape of a ____.
36. A prismatic crystal is shaped like a ___
38. Found in K-T boundary layer
39. Beryl cation
40. Element in clinopyroxene
41. Exempli gratia