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October Birthstone Meaning: Opal, Tourmaline and What They Symbolize

By BirthstoneMeaning EditorialFact-checked against GIA & International Gem Society

October carries two birthstones, and folklore treats them very differently. The October birthstone meaning opens with opal, linked in gem tradition to hope and imagination. Tourmaline has sat beside it since 1952 and refuses one reading, because the meaning traditionally assigned to it changes with each color the crystal produces.

  • Hope
  • Self-expression
  • Emotional honesty
Opal, the October birthstone
Plate X · OpalCrown (Sahasrara) · WaterIllustration

October's Stone Carries Two Reputations at Once

Everything in this section is folklore. The October birthstone meaning comes from lapidary writers, traders and crystal healing practice, and none of it has been measured in a laboratory.

Opal

Hope and purity are the qualities Roman writers attached to opal, and hope still sits next to opal on birthstone charts today. Crystal healing practice traditionally links the stone to imagination and emotional honesty, and practitioners describe it as a mirror that gives back whatever mood the wearer brings to it. A bad-luck superstition trails opal as well. It traces to an 1829 novel, and gem historians treat it as fiction.

ChakraCrown (Sahasrara)
ElementWater
ZodiacLibra, Scorpio
ColorsWhite with play-of-color, Black with play-of-color, Fire (orange-red), Crystal, Boulder

Tourmaline

Color does the work in tourmaline's folklore. Pink stones are traditionally believed to carry gentleness, green stones vitality, and black stones protection, so one stone ends up with a shelf of separate meanings. Dutch traders carried the gem to Europe from Sri Lanka in the early 1700s under the Sinhalese word turmali, which meant mixed-color stones, and that plural sense never left it.

ChakraHeart (Anahata) and Root (Muladhara)
ElementEarth
ZodiacLibra
ColorsPink, Green, Blue (Paraíba), Watermelon, Red (Rubellite), Yellow, Black
October's stone on video · Opal Stone: Spiritual Meaning, Powers And Uses, click to load from YouTube

How People Put October's Stones to Work

The traditions recorded for opal and tourmaline point toward particular moments, not everyday wear.

Giving opal as a gift

Because the bad-luck superstition still lingers among some buyers, jewellers long paired an opal gift with the recipient's own birthstone. That was a trade habit for talking a nervous customer past a novel's reputation, and it survives as a gifting convention.

Walking into an audition, a pitch, or anything that asks for imagination

Crystal healing practice traditionally reads opal for imagination and emotional honesty, describing it as giving back whatever mood the wearer brings. Practitioners carry it into creative work on that basis.

Choosing a colour to match an intention

Tourmaline's folklore runs by shade: pink is traditionally linked to gentleness, green to vitality, black to protection. Practitioners pick the colour to fit what they want from it, so one stone covers a shelf of separate readings.

A stretch where you need to feel steadier

Black tourmaline is the shade practitioners reach for when the goal is grounding, following the protective reading attached to that colour in crystal healing practice.

Can You Wear October’s Stones Every Day?

October gives you two stones that fail in completely opposite ways. Tourmaline is easy. Opal is the most delicate thing on this chart, and nearly every popular cleansing ritual is a way to wreck one.

  1. Never let an opal dry out and never soak it either. A stone that dries out will crack internally where no polish reaches, so keep it away from radiators, sealed cars and long afternoons in the sun.
  2. Ultrasonic and steam cleaners are the fastest way to destroy an opal. A soft, barely damp cloth and a gentle dry is the whole routine.
  3. Rings put a stone in the line of fire. Opal picks up damage from ordinary household dust, so earrings, pendants and brooches keep it in far better condition. If you want opal on your hand, ask for a bezel that shields the rim.
  4. Tourmaline handles daily wear without complaining, and warm soapy water with a soft brush is enough for it. Keep it clear of a steam vent all the same, because sudden heat can crack the busier stones.
  5. Perfume first, jewelry second. That order keeps absorbed oils out of an opal, and it is a habit worth having for anything you cannot easily replace.

Where October's Sources Pull in Different Directions

Three separate records disagree about October, and none was written to match the others. The trade's modern list, an older eight-table count, and a nineteenth-century novel each point a different way.

Eight Tables, One Runaway Winner

Kunz's 1913 tally of eight older gem lists gives one stone every single vote for October. Opal, which leads the modern list, picks up a single vote in that same count, and aquamarine takes five as a runner-up. The trade's calendar table and the older historical record are describing different traditions, whatever the shared month suggests.

Two Zodiac Signs, Two Different Answers Again

Kunz's separate zodiac table splits October's two signs apart. Libra is given chrysolite there, distinct from the opal the month chart hands most Libra birthdays. Scorpio is given the very stone that swept the eight-table count above, with no connection to opal at all.

A Novel Wrote the Bad-Luck Story

The superstition that opal brings misfortune has no source before an 1829 novel, and gem historians treat the idea as fiction traceable to one author. Roman writers eighteen centuries earlier linked the same stone to hope. Two reputations sit at opposite ends of the record with a single book between them.

A Third Table Nobody Quotes

Kunz also prints an Indian month list that stands apart from both Western tables. It gives October to coral, a material the Western tables never consider at all, and the same list hands December to topaz and July to sapphire. Three traditions, three answers, and the modern chart descends from only one of them.

Which of October's Two Stones Is the Real One?

Both of them are real. American jewelers standardized a birthstone list by calendar month in 1912, and opal held October on its own. A 1952 revision of that list added tourmaline beside it, so a modern chart prints two names where an older chart prints one. Keep in mind what this list is: a table of calendar months, drawn up for the jewelry trade. It says nothing about zodiac signs, which start and end mid-month and come from a separate tradition.

Tourmaline joined opal, and opal stayed. Six months on the modern American chart carry more than one official stone, and October is one of them. In shops the word October still tends to mean opal, because opal is the older name and the one buyers recognize. A necklace advertised as the month's stone is usually opal unless the listing says otherwise.

Which Zodiac Signs Cover October Birthdays?

October covers two zodiac signs, and the boundary falls inside the month. Libra runs September 23 to October 22, and Scorpio opens on October 23. Born on October 8, your month stone is opal and your sign is Libra, whose modern zodiac stone is also opal, so both systems agree. Born on October 30, your month stone is still opal, while Scorpio's modern zodiac stone is topaz, which belongs to November on the month chart. That mismatch is normal. The month list was drawn up for jewelers, zodiac stone lists grew out of older astrological writing, and the two were never reconciled.

October carries two modern stones while the older list keeps only opal, so one October birthday has two modern answers and a single traditional one. The birthstone finder returns both modern stones for a given date, along with the zodiac stone for whichever sign that date falls in.

October Birthstone Questions People Ask

What is the official October birthstone?

Opal and tourmaline are both official. Opal held the slot alone when American jewelers standardized the month list in 1912, and a 1952 revision added tourmaline. Charts that print a single name for October are usually printing the older one.

What is the October birthstone color?

October has no single color. Opal is graded by body tone, described as white, black, crystal or boulder, and judged on the spectral flashes that move across it. Tourmaline runs pink, green, blue, red, yellow and black, and pink is the shade most often sold as an October stone.

October birthstone: opal or tourmaline?

Choose by how the piece will be worn. Opal is the delicate one, suited to pendants and earrings, and it needs protection from heat and dry air. Tourmaline survives a ring on a working hand. On meaning, opal carries the older story, and tourmaline lets you pick a symbolism by color.

Which stone did the older list give October?

Opal. It is the name on American lists before 1952 and on most European ones. Older zodiac tables take a separate route and often give October's Libra portion to peridot, which belongs to a different tradition from the month chart.

Is October's birthstone different for a girl and a boy?

No version of the birthstone chart splits by gender. The list is organized by calendar month and stops there. Pink tourmaline gets marketed toward girls and black tourmaline or a dark boulder opal toward boys, which is a retail habit with no list behind it.

Was opal ever the historical answer for October?

Barely. Opal drew a single vote in Kunz's eight-table count while one other stone took all eight, and aquamarine took five as an alternate. A third table Kunz prints, drawn from Indian practice, gives October to coral instead.

What is the October birthstone meaning in spiritual practice?

Crystal healing practice traditionally associates opal with imagination and emotional openness, and reads tourmaline's meaning from its color, with black tourmaline treated as a protective stone. These are inherited beliefs. No spiritual property of any gemstone has been demonstrated under test.

Opal and tourmaline give October two very different answers, and you can own both without any contradiction. Opal repays careful handling with an effect no other gem reproduces. Tourmaline asks much less of you and offers a color for almost any taste. The sourced claims on this page can be checked against the references below. The meanings are inherited belief, and they are worth knowing on those terms.

October also has a flower on the calendar, the marigold. The birth flower chart tracks it alongside every month's birthstone.

Sources for October's Claims

Each line below is a page you can open and read yourself in Kunz's 1913 study of gem tradition.

  1. Eight older gem lists gave October's top vote to a stone other than opal
    Kunz 1913, p.316
    The tally records that stone taking every vote available, opal a single vote, and aquamarine five as an alternate choice.
  2. Kunz's zodiac table gives Libra and Scorpio stones that agree with each other as little as they agree with opal
    Kunz 1913, p.345-347
    Libra's entry names chrysolite, dated September 22 to October 23; Scorpio's names the stone that led the older count for this month.
  3. A third tradition assigns October differently again
    Kunz 1913, p.331
    The Indian month list printed there gives October to coral, with July to sapphire and December to topaz, disagreeing with both Western tables.

References

  1. Opal, Gemological Institute of America (GIA)
  2. Opal, International Gem Society
  3. perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.02.0137:book=37:chapter=21
  4. gutenberg.org/files/57978/57978-h/57978-h.htm
  5. Tourmaline, Gemological Institute of America (GIA)
  6. Tourmaline, International Gem Society

“The safest cleaning methods are also the easiest.”

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