rock crystal
Isaac Kremer / November 23, 2025 / / 0 comments
The term used for the clear , colorless form of the mineral quartz . Rock crystal can be used as a gemstone or carved into objects of various kinds.
About Isaac Kremer
IsaacKremer.com is the personal website of Isaac Kremer, MSARP, a nationally recognized leader in the Main Street Approach to commercial district revitalization with over 25 years of experience. Kremer, New Jersey's first certified Main Street America Revitalization Professional (MSARP), has served as founding executive director for organizations like Experience Princeton and the Metuchen Downtown Alliance, which won a Great American Main Street Award under his leadership. He recently became director of the Royal Oak Downtown Development Authority in Michigan.
