Magnetic hematite is not a true hematite in terms of its mineral content. Actually a man-made magnetic material, the content of magnetic hematite varies between manufacturers. The Mineralogy Database found that one sample was a synthetic ceramic barium-strontium ferrite magnet..
Verb form: To LARP, LARPing, LARPed, etc. LARPs are a category of game in which players create characters and, acting as those characters, interact with other players and Storytellers/Game Masters to complete some sort of challenge, quest, or adventure.
For other uses, see Chirp (disambiguation). A chirp is a signal in which the frequency increases (up-chirp) or decreases (down-chirp) with time. In some sources, the term chirp is used interchangeably with sweep signal. It is commonly used in sonar and radar, but has other applications, such as in spread-spectrum communications.