The Chemical Formula of Crystal Stones

Amethyst - SiO2
Bloodstone - SiO2
Carnelian - SiO2
Chalcedony (Agate) - SiO2
Citrine - SiO2
Tiger Eye - SiO2
Quartz (Rose Qtz) - SiO2

Amber C10H16O.
Aquamarine Be3Al2SiO6
Diamond C
Emerald Be3Al2SiO6
Fluorite CaF2
Garnet X3Y2 Si3O12
X = Calcium (Ca), Iron (Fe), Manganese (Mn), or Magnesium (Mg)
Y = Aluminum (Al), Chromium (Cr), or Iron (Fe) **
Hematite Fe2O3
Howlite Ca2B5SiO9(OH)5
Jade NaAl(SiO3)2
Labradorite (Na,Ca)1-2Si3-2O8
Lapis Lazuli Na3CaAl3Si3O12S
Magnetite Fe2+Fe3+2O4
Malachite Cu2CO3(OH)2
Moonstone KAlSi3O8
Pearl CaCO3
Peridot X2SiO4X = Mg or Fe
Pyrite FeS2
Rhodochrosite MnCO3
Rudy Be3Al2SiO6
Sapphire Be3Al2SiO6
Sodalite Na8(AlSiO4)6Cl2
Turquoise CuAl6(PO4)4(OH)8·4(H2O)
Tourmaline (Na, Ca) (Mg, Li, Al, Fe2+, Fe3+)3 (Al, Mg, Cr)6 B3 Si6 (OH,O,F)4
Zircon ZrSiO4

Crystal & Astrology

ARIES (MARCH 21-APRIL 19)
Aquamarine, Aventurine, Clear Quartz, Agate, Jasper, Hematite, Jade, Ruby

TAURUS (APR. 20- MAY 20)
Amber, Aventurine, Coral, Emerald, Jasper, Carnelian, Rhodonite, Jade, Quartz, especially Rose Quartz, Turquoise

GEMINI (MAY 21 - JUNE 20)
Agate, Emerald, Jade, Quartz, Pearl, Tiger Eye

CANCER (JUNE 21- JULY 22)
Blood Stone, Carnelian, Amber, Jaspers, Quartz, Emerald, Moonstone, Pearl, Agate, Chalcedony

LEO (JULY 23 - AUG. 22)
Amber, Carnelian, Labradorite, Jasper, Onyx, Quartz, Tourmaline, Onyx, Peridot

VIRGO (AUG. 23 - SEPT. 22)
Amethyst, Amber, Agate, Quartz, Jasper, Carnelian, Jade, Citrine

LIBRA (SEPT. 23 - OCT. 22)
Blood Stone, Jade, Lepidolite, especially Rose Quartz, Lapis Lazuli, Peridot

SCORPIO (OCT. 23 - NOV. 21)
Aquamarine, Garnet, Labradorite, Malachite, Quartz, Ruby, Topaz, Turquoise, Unakite

SAGITTARIUS (NOV. 22 - DEC. 21)
Amethyst, Malachite, Labradorite, Lapis Lazuli, Quartz, Topaz, Turquoise

CAPRICORN (DEC. 22 - JAN. 19)
Agate, Amethyst, Fluorite, Garnet, Lapis Lazuli, Malachite, Quartz, Ruby, Tiger Eye

AQUARIUS (JAN. 20 - FEB. 18)
Agate, Amber, Amethyst, Garnet, Hematite, Labradorite, Quartz, Turquoise

PISCES (FEB. 19 - MAR. 20)
Amethyst, Aquamarine, Blood Stone, Fluorite, Quartz, Sapphire, Turquoise

Birthstones

January - Garnet, Emerald, Rose Qtz
February - Amethyst, Bloodstone, Onyx, Moonstone
March - Aquamarine, Bloodstone, Jade, Quartz
April - Zircon, Quartz
May - Emerald, Tourmaline, Agate
June - Pearl, Moonstone
July - Ruby, Carnelian
August - Peridot, Sapphire, Jade
September - Agate, Lapis Lazuli. Moonstone, Sapphire,
October - Opal, Tourmaline, Jasper, Aquamarine
November - Topaz, Citrine, Pearl
December - Lapis Lazuli, Turquoise