Quartz crystals Welcome to BFSU: › Forums › Volume One › Learning Progression “A”: Nature of Matter › Lesson A-10. Rocks, Minerals, Crystals, Dirt, and Soil › Quartz crystals This topic has 0 replies, 1 voice, and was last updated 3 years, 11 months ago by Bernard Nebel. Viewing 0 reply threads Author Posts December 30, 2020 at 7:50 pm #8518 Bernard NebelKeymaster Quartz is a very common mineral. Small crystals of quartz are found in most in almost all kinds or rocks. In pure form, quartz crystals can be quite large and have distinctive shape as seen in photographs. Google: quartz crystals images Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.