Document status: incomplete. Quartz is a term that includes both well crystallized and compact forms of silica. For the most time the different quartz varieties have been considered as species of their own and have not been systematically grouped together before the 19th century.
Samuel Ullman (born April 13, 1840 in Hechingen, Germany; died March 21, 1924 in Birmingham) was a hardware dealer, a long-time member of the Birmingham Board of Education, a lay leader at Temple Emanu-El, and a writer whose poem, Youth, is celebrated worldwide.
Dr. Zelman is an excellent professor, advisor, and connection to have in the field. He is very involved and always is open to any questions you may have. I truly feel that you get the grade you work for in his class - it is easy to get a good grade if you want to work for one. I would HIGHLY recommend all of his classes to those interested in HS.