Learn about the metaphysical and spiritual healing properties of Hematite, which is also called the stone of the mind or blood ore.Alternate Names & Spellings for Hematite: Stone for the Mind, Blood Stone (uncommon), Blood Ore.ematite gets its name from Latin meaning blood stone. In modern times we're more familiar with polished, silvery gray-black hematite, so the name blood stone seems strange. However, when found naturally, most hematite-an iron oxide ore-is red with rust, so that's how it got its name.
Quick Answer. The mass of a baseball is about 145 grams or approximately 5.11 ounces. According to the Major League Baseball website, an official baseball cannot weigh less than 5 ounces or more than 5.25 ounces. Continue Reading
Red stitches are placed on the ball to allow pitchers to throw curve balls. Curve balls curve since the air resistance on the stitches is non-uniform. From my experiment of weighing a baseball, the result came out to be 142.54 grams which fits within the accepted range of 142 to 149 grams. Christina Lee -- 1999. Related pages in The Physics Factbook 1  : Force of a bat on a baseball.