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Gem / Mineral
|
System
|
|
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Aquamarine
|
Hexagonal
|
|
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Amethyst
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Trigonal
|
|
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apatite
|
Hexagonal
|
|
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Beryl
|
Hexagonal
|
|
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Brazilianite
|
Monoclinic
|
|
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calcite
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Trigonal
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|
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Chrysoberyl
|
Orthorhombic
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|
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Citrine
|
Trigonal
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|
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Cordierite
|
Orthorhombic
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|
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Corundum
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Trigonal
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|
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Diamond
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Cubic
|
|
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Diopside
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monoclinic
|
|
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Dioptase
|
Trigonal
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|
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Dumortierite
|
Orthorhombic
|
|
|
Emerald
|
hexagonal
|
|
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Fluorite
|
Cubic
|
|
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Gaylussite
|
monoclinic
|
|
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Garnet
|
Cubic
|
|
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Monoclinic
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Jadeite
|
|
|
Labradorite
|
triclinic
|
|
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Lazulite
|
Monoclinic
|
|
|
Malachite
|
Monoclinic
|
|
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opal
|
Amorphous
|
|
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Orthoclase
|
Triclinic
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|
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Periclase
|
Cubic
|
|
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Peridot
|
Orthorhombic
|
|
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pyrite
|
Cubic
|
|
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Quartz
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Trigonal
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|
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Rhodizite
|
Cubic
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|
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Rhodochrosite
|
Trigonal
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|
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Rhodonite
|
triclinic
|
|
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Ruby
|
Trigonal
|
|
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Rutile
|
Quadratic
|
|
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Sapphire
|
Trigonal
|
|
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Spinel
|
Cubic
|
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Tanzanite
|
Orthorhombic
|
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Topaz
|
Orthorhombic
|
|
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Tourmaline
|
Trigonal
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|
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Turquoise
|
Triclinic
|
|
|
Zircon
|
Tetragonal
|
Showing posts with label gems and minerals. Show all posts
Showing posts with label gems and minerals. Show all posts
Thursday, May 10, 2012
Crystal system of gems and minerals
Tuesday, May 8, 2012
Chemical composition of gems and minerals
|
|
Gem / Mineral
|
Composition
|
|
1
|
Aquamarine
|
Be3Al2Si6O18
|
|
2
|
Amethyst
|
SiO2
|
|
3
|
Apatite
|
Ca5 (PO4) 3F
|
|
4
|
Beryl
|
Be3Al2Si6O18
|
|
5
|
Brazilianite
|
NaAl3 (PO4) 2 (OH) 4
|
|
|
calcite
|
Ca (CO3)
|
|
|
chrysoberyl
|
BeAl2O4
|
|
|
chrysocolla
|
(Cu, Al) 2H2Si2O5 (OH) 4A (H2O)
|
|
|
citrine
|
SiO2
|
|
|
cordierite
|
Mg2Al4Si5O18
|
|
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corundum
|
Al2O3
|
|
|
diamond
|
C
|
|
|
diopside
|
CaMgSi2O6
|
|
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dioptase
|
CuSiO2 (OH) 2
|
|
|
dumortierite
|
Al7 (BO3) (SiO4) 3O3
|
|
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emerald
|
Be3Al2Si6O18
|
|
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fluorite
|
CaF2
|
|
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gahnite
|
ZnAl2O4
|
|
|
Gaylussite
|
Na2Ca (CO3) 2ú5 (H2O)
|
|
|
almandine garnet
|
Fe3Al2 (SiO4) 3
|
|
|
grossular garnet
|
Ca3Al2Si3O12
|
|
|
pyrope garnet
|
Mg3Al2 (SiO4) 3
|
|
|
garnet uvarovite
|
Ca3Cr2 (SiO4) 3
|
|
|
hematite
|
Fe2O3
|
|
|
Iolite
|
Mg2Al3AlSi5O18
|
|
|
jadeite
|
Na (Al, Fe) Si2O6
|
|
|
labradorite
|
(Ca, Na) (Si, Al) 4O8
|
|
|
lazulite
|
MgAl2 (PO4) 2 (OH) 2
|
|
|
lazurite
|
(Na, Ca) (7-8) (Al, Si) 12 (O, S) 24 [(SO4) Cl2 (OH) 2]
|
|
|
malachite
|
Cu2 (CO3) (OH) 2
|
|
|
Morganite
|
Be3Al2Si6O18
|
|
|
oligoclase
|
(Na, Ca) (Si, Al) 4O8
|
|
|
opal
|
SiO2un (H2O)
|
|
|
orthoclase
|
KAlSi3O8
|
|
|
periclase
|
MgO
|
|
|
peridot
|
Mg Fe 2SiO4
|
|
|
plagioclase
|
(Na, Ca) (Si, Al) 4O8
|
|
|
pyrite
|
FeS2
|
|
|
quartz
|
SiO2
|
|
|
rhodizite
|
(K, Cs) Al4Be4 (B, Be) 12O28
|
|
|
Rhodochrosite
|
Mn (CO3)
|
|
|
Rhodonite
|
(Mn, Fe, Mg, Ca) SiO3
|
|
|
ruby
|
Al2O3
|
|
|
rutile
|
TiO2
|
|
|
sapphire
|
Al2O3
|
|
|
spinel
|
MgAl2O4
|
|
|
Tanzanite
|
Ca2Al3OOHSiO4Si2O7
|
|
|
topaz
|
Al2SiO4 (F, OH) 2
|
|
|
tourmaline
|
NaLiCaMnMgFeAlTiCr9OHF4BO33Si6O18
|
|
|
turquoise
|
CuAl6 (PO4) 4 (OH) 8ú4 (H2O)
|
|
|
zircon
|
ZrSiO4
|
|
|
zoisite
|
CaAl3 (SiO4) 3 (OH)
|
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