Practical Gemology refers to the application of the knowledge of characteristics and properties of gemstones in identification or separation of synthetics and imitations. Diamond grading is included in practical gemology.
In November 1919 and January 1920, in what notoriously became known as the âPalmer Raids,â Attorney General Mitchell Palmer began rounding up and deporting so-called radicals. Thousands of people were arrested without warrants and without regard to constitutional protections against unlawful search and seizure.
The investigation produced no viable suspects and continued into the summer of 1969. More than seven months after the murders of Faraday and Jensen, on the night of July 4th, 1969, a gunman attacked a second young couple at the nearby Blue Rock Springs Park, Northwest of the crime scene at Lake Herman Road.