Crossword Puzzle #1

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Gem Chemistry

Here is a puzzle to challenge the gemologist. All the answers are the name of a common gem. However, the clues are the chemical make up of the stone. There are no varieties in the answers, just species. See if you can answer it correctly.

Across Down

1 ZrO2
2 Mn3Al2Si3O12
3 Al2SiO5 + Fe
6 SiO2
9 Ca3Cr2Si3O12
11 SiO2 . nH2O
12 CaMgSi2O6
15 LiAlSi2 O6
17 Ca2(Mg,Fe)5(Si4O11)2(OH) 2
20 Ca2 (Al,Fe) 3Si3O12(OH)
21 (Mg,Fe2) Al4Si5O18
22 MgAl2O4
1 BeAl2O4 + Fe, Ti
3 Fe3Al2Si3O12
4 Na(Li,Al)3Al6B3Si6O27(OH)3(OH,F)
5 C
7 Ca5(PO4)3(F,OH,Cl)3
8 ZrSiO4
10 Mg3Al2Si3O12
13 NaAlSi2O6
14 Al2O3
16 Mg2SiO4-Fe2SiO4
18 Al2SiO4(F,OH)2 + Cr
19 Be3Al2Si6)O18

Across	Down
1 ZrO2 2 Mn3Al2Si3O12 3 Al2SiO5 + Fe 6 SiO2 9 Ca3Cr2Si3O12 11 SiO2 . nH2O 12 CaMgSi2O6 15 LiAlSi2 O6 17 Ca2(Mg,Fe)5(Si4O11)2(OH) 2 20 Ca2 (Al,Fe) 3Si3O12(OH) 21 (Mg,Fe2) Al4Si5O18 22 MgAl2O4	1 BeAl2O4 + Fe, Ti 3 Fe3Al2Si3O12 4 Na(Li,Al)3Al6B3Si6O27(OH)3(OH,F) 5 C 7 Ca5(PO4)3(F,OH,Cl)3 8 ZrSiO4 10 Mg3Al2Si3O12 13 NaAlSi2O6 14 Al2O3 16 Mg2SiO4-Fe2SiO4 18 Al2SiO4(F,OH)2 + Cr 19 Be3Al2Si6)O18

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