Embedded Files
Red (oxidized) dimensions: 1½ x 1⅛ x 1¼ inches (40x27x30mm)
Grey/Silver dimensions: 1½ x 1⅛ x 1¼ inches (40x30x30 cm)
Red weight: 1⅝ ounces (48 grams);
Grey weight: 5¼ ounces (151 grams)
Collection: Northridge Campus
For reference: the U.S. penny is 0.75 inches [19.05 mm] in diameter.
Distinguishing Properties (click this to reveal) - make your list of observations before peeking
Distinguishing Properties (click this to reveal) - make your list of observations before peeking
Distinguishing Physical Properties:
You should be presented with a number of samples - that's because it has a lot of different forms and weathering and water can change how it looks.
Notice that some samples have a very metallic luster.
Run all the tests: hardness, density, etc. but the distinctive property of the mineral is its red or reddish brown streak!
Page updated
Report abuse