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Natural Crystals and Minerals - By Chemical Composition

(CaNa)(SiAl)4O8, Sodium Calcium Aluminosilicate (2 Items)
(K,Na)Ca4Si8O20(F,OH) 8H2O, Hydrated Potassium Calcium Sodium Silicate Fluoride Hydroxide (10 Items)
(Mg,Fe)2SiO4, Magnesium Iron Silicate (1 Item)
(Mg,Fe)3Si2O5(OH)4, Hydrous Magnesium Iron Silicate (1 Item)
(Mn,Fe,Mg,Ca)SiO3, Manganese Silicate (1 Item)
(Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Sodium Calcium Aluminosilicate (2 Items)
(NaCa2Al5Si13O36 14H2O), Hydrated Sodium Calcium Aluminum Silicate (5 Items)
(SiO2) with NaFe3(Al,Fe)6Si6O18(BO3)3(OH)4, Silicone Dioxide with Sodium Iron Aluminum Boro Silicate (2 Items)
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A3B2(SiO4)3 (2 Items)
Al2(SiO4)(F,OH)2, Aluminum Fluoro Hydroxyl Silicate (2 Items)
Al2(SiO4)(F,OH)2, Fluoride Aluminum Silicate (2 Items)
Al2O3, Aluminum Oxide (7 Items)
Al2SiO4(F,OH)2, Aluminum Silicate Fluoride Hydroxide (2 Items)
Al2SiO5, Aluminosilicate (6 Items)
Al2SiO5, Aluminum Silicate (3 Items)
Al7BO3(SiO4)3O3, Aluminium Boro Silicate (1 Item)
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Be2SiO4, Beryllium Silicate (1 Item)
Be3Al2(Si6O18), Beryllium Aluminum Silicate (7 Items)
Be3Al2(SiO3)6, Beryllium Aluminium Silicate (3 Items)
Be3Al2Si6O18, Beryllium Aluminum Silicate (6 Items)
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Ca(VO)Si4O10(H2O)4, Calcium Vanadium Silicate (2 Items)
Ca2Al3(SiO4)3(OH), Calcium Aluminum Silicate (1 Item)
Ca2Al3[Si2O7][SiO4]O(OH), Calcium Aluminium Sorosilicate (1 Item)
Ca2B5SiO9(OH)5, Calcium Borosilicate Hydroxide (1 Item)
Ca3Al2Si3O12, Calcium Aluminum Silicate (1 Item)
Ca5(PO4)3(OH,F,Cl), Calcium Chloride Fluoride Phosphate (2 Items)
CaAl2Si3O10 3H2O, Hydrated Calcium Aluminum Silicate (3 Items)
CaB2(SiO4)2, Calcium Boron Silicate (1 Item)
CaCO3, Calcium Carbonate (14 Items)
CaCO3, Calcium Carbonate Fossil with Impurities (2 Items)
CaCO3, Calcium Carbonate with Impurities (1 Item)
CaF2, Calcium Fluoride (13 Items)
CaMgSi2O6, Calcium Magnesium Silicate (1 Item)
CaPb2Al2Fe(SiO4)3(OH), Calcium Aluminium Iron Sorosilicate (2 Items)
CaSO4, Calcium Sulfate (1 Item)
CaSO4 2(H2O), Calcium Sulfate Dihydrate (3 Items)
CaTiSiO5, Calcium Titanium Silicate (1 Item)
Coal formed from carbonized/fossilized wood (2 Items)
Cu(Al,Fe3+)6(PO4)4(OH)8 4H2O, Hydrated Copper Aluminum Phosphate (2 Items)
Cu, Elemental Copper (1 Item)
Cu2 xAlx(H2 xSi2O5)(OH)4 nH2O, Hydrated Copper Phyllosilicate (2 Items)
Cu2CO3(OH)2, Copper Carbonate Hydroxide (5 Items)
Cu3(CO3)2(OH)2, Copper Carbonate Hydroxide (4 Items)
CuFeS2, Copper Iron Sulfide (1 Item)
CuSiO3H2O, Hydrated Copper Silicate (1 Item)
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Fe2+3(PO4)2 8H2O, Hydrated Iron Phosphate (1 Item)
Fe2O3, Iron Oxide (2 Items)
FeS2, Iron Sulfide (5 Items)
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HgS, Mercury Sulfide (2 Items)
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K(Al,Cr)2(AlSi3O10)(OH)2, Potassium Aluminum Chromium Silicate (1 Item)
K(AlSi3O8), Potassium Aluminum Silicate (1 Item)
K(Na,Ca)11(Ba,Sr)Si18O46(OH,F) nH2O, Hydrated Potassium Calcium Sodium Silicate Hydroxide Fluoride (1 Item)
KAl2(Si3AlO10)(OH)2, Potassium Aluminum Silicate (3 Items)
KAl3Si3O10(OH)2, Potassium Aluminum Silicate Hydroxide Fluoride (1 Item)
KLi2Al(Si4O10)(F,OH)2, Potassium Lithium Aluminum Fluorosilicate (5 Items)
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LiAl(PO4)F, Lithium Aluminum Hydroxyphosphate (1 Item)
LiAl(Si2O6), Lithium Aluminum Silicate (2 Items)
LiAlSi2O6, Lithium Aluminosilicate (3 Items)
LiAlSi2O6, Lithium Aluminum Silicate (3 Items)
LiAlSi4O10, Aluminum Lithium Silicate (2 Items)
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Mg3(Si2O5)(OH)4 (1 Item)
MnCO3, Manganese Carbonate (1 Item)
MnPO4, Manganese Phosphate (1 Item)
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Na(90 70%)Ca(10 30%) (Al,Si)AlSi2O8, Sodium Calcium Aluminum Silicate (1 Item)
Na(Li,Al)3Al6Si6O18(BO3)3 (OH)4, Sodium Lithium Aluminum Boro Silicate (10 Items)
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH), Sodium Magnesium Aluminum Boro Silicate (1 Item)
Na2Ca2Al5Si7O24Cl, Sodium Calcium Aluminum Silicate Carbonate Chloride (1 Item)
Na4Al3(SiO4)3Cl, Sodium Aluminum Silicate Chloride (2 Items)
NaCa2(Mg4Al)(Si6Al2)O22(OH)2, Basic Sodium Calcium Magnesium Aluminum Silicate (1 Item)
NaCl, Sodium Chloride (7 Items)
NaFe3(Al,Fe)6Si6O18(BO3)3(OH)4, Sodium Iron Aluminum Boro Silicate (10 Items)
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PbS, Lead Sulfide (1 Item)
Pink Orthoclase Feldspar KAlSi3O8, Potassium Aluminum Silicate, Green Epidote Ca2(Al,Fe)3(SiO4)3(OH), Calcium Aluminum Iron Silicate Hydroxide, and SiO2 (1 Item)
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Sb2S3, Antimony Trisulfide (3 Items)
SiO2(+Al2O3), Silicon Dioxide + Aluminum Oxide With Impurities depending on Location (1 Item)
SiO2+Au and In, Silicon Dioxide bonded and coated with Gold and Indium (4 Items)
SiO2+Cr, Silicon Dioxide with Chromium (4 Items)
SiO2+Mineral Inclusions, Silicon Dioxide with Mineral Inclusions (1 Item)
SiO2, Silicon Dioxide (144 Items)
SiO2, Silicon Dioxide bonded and coated with Gold (5 Items)
SiO2, Silicon Dioxide bonded and coated with Gold and/or Indium (2 Items)
SiO2, Silicon Dioxide bonded and coated with Gold and/or Iron Oxide (3 Items)
SiO2, Silicon Dioxide bonded and coated with Silver and/or Platinum (4 Items)
SiO2, Silicon Dioxide Complex A Quartz/Tourmaline Trachyte (1 Item)
SiO2, Silicon Dioxide naturally irradiated (15 Items)
SiO2, Silicon Dioxide with Actinolite or Chlorite Inclusions (2 Items)
SiO2, Silicon Dioxide with green (Chlorite) or red/brown (Iron) Inclusions (1 Item)
SiO2, Silicon Dioxide with Green Mineral Inclusions (1 Item)
SiO2, Silicon Dioxide with Hematite Inclusions (1 Item)
SiO2, Silicon Dioxide with Impurities (10 Items)
SiO2, Silicon Dioxide with Inclusions (2 Items)
SiO2, Silicon Dioxide with Inclusions and/or Impurities (2 Items)
SiO2, Silicon Dioxide with Iron or Titanium Inclusions (4 Items)
SiO2, Silicon Dioxide with Iron Oxide Impurities (2 Items)
SiO2, Silicon Dioxide with Lithium Inclusions (2 Items)
SiO2, Silicon Dioxide with Mica Inclusions (3 Items)
SiO2, Silicon Dioxide with natural Hematite dusting/coating (2 Items)
SiO2, Silicon Dioxide with Nickel Inclusions (1 Item)
SiO2, Silicon Dioxide with Phantoms, Enhydros or Other Inclusions (2 Items)
SiO2, Silicon Dioxide with Titanium (Oxides and Hydroxides) Inclusions (4 Items)
SrSO4, Strontium Sulfate sometimes with Barium (4 Items)
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TiO2, Titanium Oxide (1 Item)
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Varies by Type (2 Items)
Varies by Type but Tektites are mostly silica glass with inclusions of magnesium/iron/other elements (1 Item)
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Zn4Si2O7(OH)2 H2O, Hydrated Basic Zinc Silicate (1 Item)
ZnO, Zinc Oxide (1 Item)
ZrSiO4, Zirconium Silicate (1 Item)