What is the Libra birthstone?

There isn't one settled answer. The traditional tropical zodiac (September 23 – October 22) names Chrysolite; the modern jewelry-trade convention names Opal instead. Both are sourced, dated lists — see the comparison table above.

Why do the two zodiac birthstone lists disagree for Libra?

Libra's traditional stone, Chrysolite, comes from the historical September birthstone list — the month Libra begins in. Its modern stone, Opal, comes from the separate current monthly birthstone table instead. The disagreement between the two zodiac lists is really the historical list diverging from the modern one; each sign inherits that divergence from its date range.

What color is Opal, Libra's modern birthstone?

Opal occurs in multicolour, white, and colourless tones, with a Mohs hardness of 5.5–6.5.

Is my Vedic sign the same as Libra?

Not necessarily. The sidereal zodiac used in Vedic astrology runs roughly 23 days behind the tropical zodiac, so a birth date in tropical Libra often falls under sidereal Virgo instead. We have not sourced Vedic birthstone assignments, so this concerns the sign only, not a stone recommendation.

What is chrysolite, Libra's traditional stone?

Chrysolite is a historical 15th–20th-century name for peridot — gem-quality olivine. It is not a separate mineral; modern usage has largely replaced "chrysolite" with "peridot," which is why the older name can be confusing to encounter today.

Libra Birthstones

Libra doesn't have one settled birthstone. The traditional tropical zodiac assigns Chrysolite; the modern jewelry trade assignsOpal instead. Both are attested, dated conventions — not ancient absolutes — and the comparison and sourcing below show exactly where each one comes from.

Libra at a glance

Date range: September 23 – October 22
Element: Air
Modality: Cardinal
Ruling planet: Venus
Polarity: Positive

Libra birthstones by system

Both zodiac-birthstone systems for Libra, side by side
Sign	Traditional tropical zodiacTraditional Western astrology	Modern jewellery-trade zodiacContemporary retail convention
Libra	Chrysolite	Opal

Traditional tropical zodiac: This list derives from the historical monthly birthstone table keyed to each sign's starting month, so it inherits that table's lack of a single standardising source.

Modern jewellery-trade zodiac: This is a contemporary retail convention mapping the current monthly list onto zodiac date ranges — a 20th/21st-century commercial construct, not an ancient astrological tradition.

The stones themselves

Chrysolite (traditional tropical zodiac)

Chrysolite is a variety of Peridot. Mohs hardness: 6.5–7. Color: Green. Chrysolite is a historical 15th–20th-century name for peridot (gem-quality olivine) — it is not a separate species, and modern usage has largely replaced it with "peridot."

Opal (modern jewelry-trade zodiac)

Opal is its own mineral species. Mohs hardness: 5.5–6.5. Color: Multicolour, White, and Colourless. Opal is a mineraloid — hydrated amorphous silica with no true crystal structure — rather than a crystalline mineral; its play-of-color comes from regular arrays of silica microspheres diffracting light.

Why Libra has two different stones

Libra begins in September. The historical September birthstone list named Chrysolite, and Chrysolite is the entry that carried through into the traditional tropical-zodiac list for Libra — the same stone, tied to the month the sign begins in.

The modern jewelry-trade list works differently: rather than drawing on the historical table, it draws on the current monthly birthstone table instead. Libra ends in October, and its modern stone, Opal, matches the current US birthstone table for October — the month that holds most of Libra's date range.

Western vs. Vedic: which sign are you really?

The dates above use the tropical zodiac, the system Western astrology — and this page — is built on. The sidereal zodiac used in Vedic (Jyotish) astrology runs roughly 23 days behind it, because it tracks the actual position of the constellations rather than the seasons. If you were born under tropical Libra (September 23 – October 22), your sidereal placement is often Virgo instead — especially for birthdays in the first few weeks of the range. We have not sourced Vedic birthstone assignments for Virgo or any other sign, so this is a note about the sign shift only, not a birthstone recommendation.

Libra birthstone FAQ

What is the Libra birthstone?: There isn't one settled answer. The traditional tropical zodiac (September 23 – October 22) names Chrysolite; the modern jewelry-trade convention names Opal instead. Both are sourced, dated lists — see the comparison table above.
Why do the two zodiac birthstone lists disagree for Libra?: Libra's traditional stone, Chrysolite, comes from the historical September birthstone list — the month Libra begins in. Its modern stone, Opal, comes from the separate current monthly birthstone table instead. The disagreement between the two zodiac lists is really the historical list diverging from the modern one; each sign inherits that divergence from its date range.
What color is Opal, Libra's modern birthstone?: Opal occurs in multicolour, white, and colourless tones, with a Mohs hardness of 5.5–6.5.
Is my Vedic sign the same as Libra?: Not necessarily. The sidereal zodiac used in Vedic astrology runs roughly 23 days behind the tropical zodiac, so a birth date in tropical Libra often falls under sidereal Virgo instead. We have not sourced Vedic birthstone assignments, so this concerns the sign only, not a stone recommendation.
What is chrysolite, Libra's traditional stone?: Chrysolite is a historical 15th–20th-century name for peridot — gem-quality olivine. It is not a separate mineral; modern usage has largely replaced "chrysolite" with "peridot," which is why the older name can be confusing to encounter today.

Sources

Retrieved 2026-08-10.