Meet Mystic Topaz, daughter of Rarity and Spike.  
Topaz was my first design for a next gen kid, so she is my baby.  
Topaz takes after her father more than her mother, and associates more with being a dragon. She can even breathe fire and chomp on gems. Her claws give her an edge in digging up gems, which she does for her mother’s growing business. Even though her job is finding gems, she and her mother are, unfortunately, not that close. Rarity hates to admit she’s disappointed, not in her daughter, but for the fact she didn’t get the pretty princess to take after her. Topaz is much closer to Spike, who digs with her as well, and rough-houses with her.  
Topaz loves other ponies and creatures and is very charismatic, though she’s a bit socially inept. She seems to have a very serious case of foot-in-mouth disease. The only other individual seems to not have this problem with is her brother, Malachite, but he doesn’t seem to reciprocate.
 
Fun Facts:  
Topaz’s favorite gems to eat are emeralds, which she tends to horde for herself.  
Spike is really over protective of Topaz, calling her his “Little Mysty”  
Topaz tends to only comb through her mane with her claws.  
Topaz while she favors gems, will also eat rocks.  
Because of her love for stones, Topaz has also grown to love Pinkie Pie’s rock candy.