Strontium Strontium Strontium is the chemical element with symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly chemically reactive. The metal forms a dark oxide layer when it is exposed to air. Strontium has physical and chemical properties similar to those of its two vertical neighbors in the periodic table, calcium and barium. It occurs naturally mainly in the minerals celestine and strontianite, and is mostly mined from these. While natural strontium is stable, the synthetic Sr isotope is radioactive and is one of the most dangerous components of
Stieff Silver silverware production was moved to Providence RI while sterling silver hollow ware and pewter would remain at the Stieff factory. Manufacturing ceased in 1999 in Baltimore, as operations were consolidated at a Lenox plant in Smithfield RI and later to New Jersey. Today the name survives as a brand of Lifetime Brands Inc., Lifetime bought Kirk-Stieff and other silver brands from Lenox in July 2007. Sale price was 8.775 million dollars (US Dollars) The silver is now made in Puerto Rico, but only as Sterling Flatware (unchased). Of the Stieff patterns, only the pattern Stieff Rose is still made, and