Author: BirthGems Team Page 412 of 669

• The Duality of October 20: A Gemological and Cultural Exploration of Opal and Tourmaline

  Category: birthstone

  16.01.2026

• The Radiant Duality: Exploring Opal and Tourmaline as the October 19 Birthstone

  Category: birthstone

  16.01.2026

• The Duality of October 18: Exploring the Dual Birthstones of Opal and Tourmaline

  Category: 10th

  16.01.2026

• October 14th Birthstones: The Duality of Opal and Tourmaline

  Category: birthstone

  16.01.2026

• Opal and Tourmaline: The Dual Gemstones of October

  Category: birthstone

  16.01.2026

• The October 7th Birthstones: Opal and Tourmaline – A Duality of Color, Hope, and Vitality

  Category: birthstone

  16.01.2026

• October's Dual Gems: The Science, Lore, and Lore of Opal and Tourmaline

  Category: birthstone

  16.01.2026

• Opal and Tourmaline: The Dual October Birthstones of Hope and Stability

  Category: birthstone

  16.01.2026

• The Dual Significance of Opal and Tourmaline: October's Birthstones for the 22nd

  Category: birthstone

  16.01.2026

• The Dual Birthstones of October: Exploring the Symbolism and Science of Opal and Tourmaline

  Category: birthstone

  16.01.2026