Magnetite crystals have a metallic lustre.
True. The luster of a mineral is described as either metallic or nonmetallic. Metallic luster reflects light like metal, while nonmetallic luster can vary from glassy to earthy in appearance.
Quartz has a nonmetallic, vitreous luster.
Calcite is a compound and therefore cannot be classified as a metal or nonmetal.
Calcite typically exhibits a vitreous or glassy luster.
Magnetite has a metallic luster.
The mineral you are referring to is likely magnetite. Magnetite is a black mineral with a nonmetallic luster, often appearing metallic or glassy. It is a common iron oxide mineral found in a variety of geological settings.
yes
Depending on the variety, feldspars can range from adamantine to glassy in luster.
True. The luster of a mineral is described as either metallic or nonmetallic. Metallic luster reflects light like metal, while nonmetallic luster can vary from glassy to earthy in appearance.
a gemstone
Quartz has a nonmetallic, vitreous luster.
There are three common types of nonmetallic luster: vitreous (glassy), pearly, and resinous. These types describe the appearance of a mineral's surface when light is reflected off of it.
Calcite is a compound and therefore cannot be classified as a metal or nonmetal.
Calcite typically exhibits a vitreous or glassy luster.
Glass that sat out in the southern. Nevada sun a little too long.
Ruby (corundum) has a vitreous or glassy luster.
A hard colorful mineral with a brilliant or glassy luster is likely a gemstone. Gemstones are prized for their beauty and often used in jewelry due to their vibrant colors and reflective qualities. Common examples include diamonds, rubies, sapphires, and emeralds.