Birthstone Book Covers: October = Opal!

I participated in Birthstone Books Covers for the first time in August, and now I’m hooked! Leslie at Books Are the New Black hosts this fun monthly meme — and since I love anything related to spotlighting amazing book covers, I just had to jump in.

The rules are simple:


October’s birthstone is opal. (Well, also tourmaline, but I’m sticking with opals!) According to the American Gem Society:

The name “opal” originates from the Greek word opallios, which meant “to see a change in color.” The Roman scholar Pliny used the word opalus when he wrote about this gemstone’s kaleidoscopic “play” of rainbow colors that could simulate shades of any stone.

Opal’s characteristic “play-of-color” was explained in the 1960s, when scientists discovered that it’s composed of microscopic silica spheres that diffract light to display various colors of the rainbow. These flashy gemstones are called “precious opals.” Those without play-of-color are “common opals.”

Dozens of opal varieties exist, but only a few, such as fire opal and boulder opal, are universally recognized. Opals are often referred to by their background “body color” of black or white.

Opal’s classic country of origin is Australia. Seasonal rains soaked the parched Outback, carrying silica deposits underground into cracks between layers of rock. When the water evaporated, these deposits formed opal. Sometimes, silica seeped into spaces around wood, seashells and skeletons, resulting in opalized fossils.

Since opal was discovered in Australia around 1850, the country has produced 95 percent of the world’s supply. Opal is also mined in Mexico, Brazil, Honduras, Ethiopia, the Czech Republic, and parts of the U.S., including Nevada and Idaho.

Learn more about the history of opals. 

I’ve always loved opals, probably ever since my grandparents gave me a pair of opal earrings when I was a wee tween… which I still have, even though I haven’t worn them in decades.

I’ve only ever seen the white or lighter blue varieties, but apparently there are endless color combinations in these beautiful gemstones.

Opal varieties (source: http://www.geology.com)

Which makes it hard to figure out how to match opals with book covers! Since the opals I’m most familiar with have a mostly white look with streaks and splashes of pink and blue, I’ll go with a mix of white, pink, and blue covers… which don’t necessarily look like opals, but I think that’s the closest I can come!

Here are the opal-inspired book covers I’ve found on my shelves:

  • Echo Boy by Matt Haig
  • The Summer Skies by Jenny Colgan
  • Drunk on All Your Strange New Words by Eddie Robson
  • The Hundred Loves of Juliet by Evelyn Skye
  • Emmett by L. C. Rosen

Do you have any favorite opal book covers to share?

Next month is Opal for October… seems like it’ll be a tricky one!

Birthstone Book Covers: September = Sapphire!

I participated in Birthstone Books Covers for the first time in August, and now I’m hooked! Leslie at Books Are the New Black hosts this fun monthly meme — and since I love anything related to spotlighting amazing book covers, I just had to jump in.

The rules are simple:


September’s birthstone is sapphire. According to the American Gem Society, sapphire gemstones symbolize loyalty, nobility, sincerity, and integrity. Learn more about their history. 

Sapphire is my birthstone (yay, September!), and I’ve always loved the rich color (and love checking out sapphire jewelry of all sorts). But more importantly…

Onward to the books! Here are the sapphire book covers I’ve found on my shelves:

  • Outlander by Diana Gabaldon
  • The Sparrow by Mary Doria Russell
  • Harry Potter and the Order of the Phoenix by J. K. Rowling
  • Catch-22 by Joseph Heller
  • Black Woods Blue Sky by Eowyn Ivey
  • Go Tell the Bees That I Am Gone by Diana Gabaldon
  • The Poisoner’s Ring by Kelley Armstrong
  • Fairy Tale by Stephen King

Do you have any favorite sapphire book covers to share?

Next month is Opal for October… seems like it’ll be a tricky one!

Birthstone Book Covers: August = Peridot!

Trying something new! Leslie at Books Are the New Black hosts this fun monthly meme, and since I love anything related to spotlighting amazing book covers, I thought I’d jump in.

The rules are simple:


August’s birthstone is peridot. According to the American Gem Society:

Though peridot is widely recognized for its brilliant lime green glow, the origin of this gemstone’s name is unclear. Most scholars agree that the word “peridot” is derived from the Arabic faridat, which means “gem;” however, some believe it’s rooted in the Greek word peridona, meaning “giving plenty.” Perhaps that’s why peridot was, according to lore, associated with prosperity and good fortune.

Peridot is the rare gem-quality variety of the common mineral olivine, which forms deep inside the Earth’s mantle and is brought to the surface by volcanoes. In Hawaii, peridot once symbolized the tears of Pele, the volcano goddess of fire who controls the flow of lava. Rarely, peridot is also found inside meteorites.

Peridot’s signature green color comes from the composition of the mineral itself—rather than from trace impurities, as with many gemstones. That’s why this is one of few gemstones that only comes in one color, though shades may vary from yellowish-green to olive to brownish-green, depending on how much iron is present.

My son is an August baby — so even though he doesn’t actually wear gemstones of any sort, peridot is near and dear to my heart!

Onward to the books! Here are the peridot (or peridot-adjacent) book covers I’ve found on my shelves:

  • Hollow Kingdom by Kira Jane Buxton
  • Children of Time by Adrian Tchaikovsky
  • The Collapsing Empire by John Scalzi
  • An Echo in the Bone by Diana Gabaldon
  • Weyward by Emilia Hart
  • Slow Dance by Rainbow Rowell
  • The Paradise Problem by Christina Lauren
  • Heartsong by TJ Klune
  • Lost in the Moment and Found by Seanan McGuire

Do you have any favorite peridot book covers to share?

Next month is Sapphire for September… and since it’s “my” month, I’ll be excited to work on the next birthstone post!