Mexican
Fire Opal is a member of the opal mineral group. Mexican Fire Opal has a hardness
of 5-6.5 and a specific gravity of 2.15. Mexican Fire Opal, as its name implies,
is only found in Mexico.
Mexican Fire Opal is a type of opal that naturally has a yellow to bright orange color.
Mexican
Fire Opal is a member of the opal mineral group. Mexican Fire Opal has a hardness
of 5-6.5 and a specific gravity of 2.15. Mexican Fire Opal, as its name implies,
is only found in Mexico.
Opal
is a gemstone with a white or smokey gray background that sparkles with blues,
greens and reds. Opal may also be used as the birthstone for November and commemorates
the 14th and 18th wedding anniversaries.
Opal is a member of the opal mineral group. Opal has a hardness of 5-5.65 and a specific gravity of 2.15. Opals are found in Australia.
Onyx
is a polished black gemstone. Of all the gemstones commonly worn as jewelry,
onyx has the most evil reputation. It was believed to sow discord among lovers
and to cause nightmares and depression. On a more positve note, the Romans believed
that onyx carved with the image of Mars brought valor to soldiers.
Onyx is a member of the chalcedony mineral group. Onyx has a hardness of 6.5 - 7 and a specific gravity of 2.60. Onyx is found in Brazil, Madagascar, Uruguay and the USA.
If you were born in June, then pearls are your traditional birthstone. Pearls are also used to commemorate the 3rd and 30th wedding anniversaries. Pearls have been known from antiquity, Their popularity was so great that a whole market in ancient Rome was called the "portus margharita", or the pearl market place.
While
there are many types of pearls, and they can be found the world over, there
are six types that stand out for quality: Akoya, Tahitian, South Sea, Chinese
freshwater, keshi and mabe. When purchasing maybe pearls, be carefull that it
is actually a pearl, instead of maybe shell. Maybe shell is virtually indistinguishable,
but is mother-of-pearl rather than actual pearl.
Pearls are not minerals but organics. Pearls have a hardness of 2.5 - 4 and a specific gravity of 2.66 - 2.78. Most pearls come from China, Japan and the South Seas.
If
you were born in August, then peridot is your birthstone. Peridot also commemorates
the 16th wedding anniversary.
Peridot is a member of the peridot mineral group. Peridot has a hardness of 6.5 - 7 and a specific gravity of 3.34. Peridot is found in China, Australia, Brazil, Myanmar, Kenya, Mexico, Sri Lanka and the USA.