Question: are there different types of quartz?
Answer: Amethyst. Amethyst, the purple variety, is the most popular and valuable Quartz gemstone. ... 
Citrine. Citrine is the yellow, orange, or reddish-brown variety of Quartz. ... 
Smoky Quartz. ... 
Rose Quartz. ... 
Rock Crystal. ... 
Milky Quartz. ... 
Rutilated Quartz. ... 
Ametrine.