â¢ Graduate Medical Education (GME) for physicians. Inpatient care units at a VAMC can be categorized into two general types; from lowest to highest patient acuity: Medical / Surgical (M/S) and Intensive Care Unit (ICU).
That means that the different types of metals used in the stars each have a characteristic color. Here are some of the metals and specific compounds that are typically used in fireworks to produce different colors: Red: strontium (strontium carbonate, SrCO3), for intense reds and lithium (lithium carbonate, Li2CO3, or lithium chloride, LiCl) for medium reds. Orange: calcium (calcium chloride, CaCl2)
1 Visit this site to learn how professionals create the colors that appear during the vibrant displays of fireworks.  Lights and Colours. Go to this site to see what chemicals create the colors of firesworks. Before the 19th century, only the colors white, yellow, and orange were possible in fireworks.