Igneous Rock Pie and Cloudy Quartz

Igneous Rock Pie and Cloudy Quartz are two married Earth ponies and members of the Pie family who live on a rock farm in Equestria. They are the parents of Pinkie Pie, Maud Pie, Limestone Pie, and Marble Pie.

Depiction in the series
Igneous Rock and Cloudy Quartz first appear in Pinkie Pie's flashback in The Cutie Mark Chronicles in which Pinkie throws a party to spread cheer. Shocked by the party at first, Igneous and Cloudy slowly smile and join in the festivities.

In season three, Igneous Rock appears in Trixie's flashback in Magic Duel.

In season five, Cloudy Quartz is indirectly mentioned by Pinkie in Make New Friends but Keep Discord because Pinkie originally invited her to the Grand Galloping Gala. In Party Pooped, Applejack finds plans in Pinkie Pie's secret party-planning room for Igneous Rock and Cloudy Quartz's fiftieth, one-hundredth, and five-hundredth anniversaries.

Igneous Rock Pie and Cloudy Quartz have major roles in Hearthbreakers when the Apple family and Pie family spend Hearth's Warming Eve together. In this episode, they are depicted as stereotypically Amish, speaking in old English and acting very traditional. Initially unreceptive to the Apples' traditions, Igneous Rock and Cloudy Quartz eventually come to accept them, with Igneous even trying to adopt some of Granny Smith's country mannerisms.

According to the two, they were arranged to be married by a "Pairing Stone".

IDW comics
In, Igneous Rock, Cloudy Quartz, and their daughters appear in present day on page 3.

Chapter books
In Pinkie Pie and the Rockin' Ponypalooza Party!, Igneous Rock and Cloudy Quartz visit Pinkie Pie in Ponyville. They appeal to Twilight Sparkle for help in saving their rock farm, which they are in danger of losing due to rivaling businesses. Though they initially brush off Pinkie's suggestions because she doesn't take anything seriously, Igneous Rock and Cloudy Quartz turn to her for help in the end because of her utter devotion to her family.

In Rarity and the Curious Case of Charity, Rarity receives an invitation to Cloudy Quartz's birthday party in the mail.

My Little Pony (mobile game)
Igneous Rock and Cloudy Quartz are available characters in Gameloft's mobile game, added to the iOS version of the game on June 4, 2014 and to the Android version of the game on June 10, 2014. Igneous Rock's in-game description states "Igneous Rock rocks at rock farming, rock collecting and rocking his precious daughters to sleep." Cloudy Quartz's in-game description states "Cloudy Quartz is the matter-of-fact mother of Pinkie Pie, Marble Pie, Maud Pie and Limestone Pie."

Merchandise
In Enterplay's collectible card game, card α #29 C of Igneous Rock lists his name with a trademark symbol and gives him the description "Pinkie Pie's father runs the most successful rock farm in Ponyville history. His sedimentary rock collection is the envy of absolutely nopony."

In the card game's Canterlot Nights expansion set, card #30 C of Cloudy Quartz lists her name with a trademark symbol and lists the quote "When I 'went wild' as a filly, I ate an entire bag of rock candy in one sitting. When Pinkamena Diane goes wild, it's on the front page of the Ponyville Express..."

Quotes
The Cutie Mark Chronicles
 * Igneous Rock: We better harvest the rocks from the south field.
 * Cloudy Quartz: Pinkamena Diane Pie! Is that you?

Hearthbreakers
 * Igneous Rock: Surely thy name is not but Granny Smith. I am called Igneous Rock Pie, son of Feldspar Granite Pie.
 * Cloudy Quartz: Thou shalt know me as Cloudy Quartz.
 * Igneous Rock: May Providence favor thee well, and to thou comfort our humble homestead bring.


 * Cloudy Quartz: We were chosen by the Pairing Stone and betrothed within a fortnight.
 * Igneous Rock: The choosing stone decreed, "Thou shalt love one another." And lo, it was so.


 * Igneous Rock: Pinkamena Diane Pie! Truly thou cannot favor this madness!


 * Igneous Rock: 'Yee-haw'.

Pinkie Pie and the Rockin' Ponypalooza Party!
 * Igneous Rock: Your older sister is keeping an eye on the farm.


 * Cloudy Quartz: Ever since that Crystal Empire showed up again, all anypony wants are stones that shine, sparkle, and shimmer! Plain old rocks are boring.


 * Igneous Rock: It's... the silliest idea I've ever heard in m' life! This is not something one of your parties can fix. Why can't you be serious for once, Pinkamena?


 * Cloudy Quartz: We're so sorry, Pinkamena, dear. We didn't mean to hurt your feelins'. We've just been under so much stress about losin' the farm and, well... we didn't think you'd understand. You've always had such a sunny outlook on things!


 * Igneous Rock: How did our little Pinkamena do all this? I've never seen so many ponies in my whole life!
 * Cloudy Quartz: And they all came out to help us?