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Cut and Polished Crystals - By Chemical Composition

(CaNa)(SiAl)4O8, Sodium Calcium Aluminosilicate (3 Items)
(Fe,Mg,Al)6(Si,Al)4O10(OH)8, Hydrous Ferro Magnesium Aluminum Silicate (1 Item)
(Mg,Fe)3Si2O5(OH)4, Hydrous Magnesium Iron Silicate (1 Item)
(Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Sodium Calcium Aluminosilicate (4 Items)
(SiO2) with NaFe3(Al,Fe)6Si6O18(BO3)3(OH)4, Silicone Dioxide with Sodium Iron Aluminum Boro Silicate (1 Item)
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A3B2(SiO4)3 (1 Item)
Al2(SiO4)O, Aluminum Silicate with Graphite Inclusions (1 Item)
Al2SiO5, Aluminosilicate (1 Item)
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Ca2(Mg,Fe)5Si8O22(OH)2, Calcium Magnesium Iron Silicate (1 Item)
Ca2Al3(SiO4)3(OH), Calcium Aluminum Silicate (1 Item)
Ca5(PO4)3(OH,F,Cl), Calcium Chloride Fluoride Phosphate (1 Item)
CaAl2Si3O10 3H2O, Hydrated Calcium Aluminum Silicate (1 Item)
CaCO3, Calcium Carbonate (2 Items)
CaF2, Calcium Fluoride (3 Items)
CaSO4, Calcium Sulfate (1 Item)
CaSo4 2(H20), Calcium Sulfate Dihydrate (1 Item)
CaSO4 2(H2O), Calcium Sulfate Dihydrate (2 Items)
Complex Composition of Calcite and Aragonite (CaCO3 Calcium Carbonate) with Limestone/Dolomite (CaMg(CO3)2 Calcium Magnesium Carbonate) (1 Item)
Cu2CO3(OH)2, Copper Carbonate Hydroxide (1 Item)
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K(Na,Ca)11(Ba,Sr)Si18O46(OH,F) nH2O, Hydrated Potassium Calcium Sodium Silicate Hydroxide Fluoride (1 Item)
KAl2(AlSi3O10)(F,OH)2, Potassium Aluminum Silicate Hydroxide Fluoride (1 Item)
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Na(90 70%)Ca(10 30%) (Al,Si)AlSi2O8, Sodium Calcium Aluminum Silicate (1 Item)
Na(90 70%)Ca(10 30%)(Al,Si)AlSi2O8, Sodium Potassium Aluminium Silicate (1 Item)
Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2, Zircon Silicate (1 Item)
Na4Al3(SiO4)3Cl, Sodium Aluminum Silicate Chloride (4 Items)
NaCa2Si3O8(OH), Sodium Calcium Silicate Hydroxide (1 Item)
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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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SiO2, Silicon Dioxide (54 Items)
SiO2, Silicon Dioxide bonded and coated with Gold and/or Indium (1 Item)
SiO2, Silicon Dioxide bonded and coated with Gold and/or Iron Oxide (1 Item)
SiO2, Silicon Dioxide naturally irradiated (18 Items)
SiO2, Silicon Dioxide with Carbon and Iron (1 Item)
SiO2, Silicon Dioxide with Copper Silicates Inclusions (1 Item)
SiO2, Silicon Dioxide with Green Mineral Inclusions (1 Item)
SiO2, Silicon Dioxide with Hematite Inclusions (2 Items)
SiO2, Silicon Dioxide with Hematite or Pyrite Inclusions (2 Items)
SiO2, Silicon Dioxide with Impurities (8 Items)
SiO2, Silicon Dioxide with Inclusions and/or Impurities (3 Items)
SiO2, Silicon Dioxide with Iron and Magnesium Inclusions (1 Item)
SiO2, Silicon Dioxide with Iron or Titanium Inclusions (14 Items)
SiO2, Silicon Dioxide with Iron Oxide Impurities (4 Items)
SiO2, Silicon Dioxide with Mica Inclusions (10 Items)
SiO2, Silicon Dioxide with Titanium (Oxides and Hydroxides) Inclusions (4 Items)
SiO2 nH2O, Hydrated Silicon Dioxide (1 Item)
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[Na(90 70%)Ca(10 30%) Al,Si]AlSi2O8, Sodium Calcium Aluminum Silicate (1 Item)