Suggestion may be sent to the Statewide Interoperability Coordinator, Jim Stromberg, at James.Stromberg@state.mn.us. Definition of Interoperability. Interoperability is the ability to communicate, as needed, on demand, and as authorized at all levels of government and across all Public Safety disciplines. The need for communications interoperability is a significant public safety issue for citizens and emergency responders readily recognized by our local public safety officials.
Other ID Marks. 1) Tarnish. On a freshly broken surface, the color is bright metallic-white. Upon prolonged exposure, it tarnishes black, brown to gray, and dark yellow.2) Silver is the best conductor of electricity. Complex Tests. Dissolves in nitric acid and and sulfuric acid.ilver can be found pure, but is usually mixed with small amounts of gold, arsenic, and antimony. A natural alloy of gold and silver is known as Electrum, and is usually classified as a variety of Gold. Silver is a very resistant mineral. It does not dissolve in most solvent s, and won't react to oxygen or water.
â¢ Yellow Sapphire. â¢ Zircon. This is a hard, white, elastic, fine-grained substance obtained from the tusks of the elephant, walrus, sperm whale and hippopotamus, this last variety being the best. The colour of ivory ranges from white to yellowish white, to brownish white, the commonest shade being pale cream.Ivory can be distinguished from bone by virtue of the fine tubules running through it with a spiral course which indicate the growth of the tooth.These are not present in bone.Ivory comes from Africa and Asia.vory can be distinguished from bone by virtue of the fine tubules running through it with a spiral course which indicate the growth of the tooth. These are not present in bone. Ivory comes from Africa and Asia.