How reflective or shiny something is
Diamonds do not have a metallic luster; diamond luster is adamantine to waxy.
Calcite typically exhibits a vitreous or glassy luster.
Like quartz it has a glassy luster
Graphite is black and posseses dull appearance
Hornblende does not have a metallic luster. It typically has a non-metallic, vitreous to dull luster depending on its composition and crystal structure.
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A mineral's ability to reflect light is a test for its luster. Luster describes how light is reflected off the surface of a mineral, and it can be classified as metallic or non-metallic. Metallic luster is shiny like metal, while non-metallic luster can be categorized further into subcategories like vitreous (glassy), pearly, or dull.
get a mineral tester and find it cheap. some rip you off
The tests you can do is the streak test, the luster test,the finger nail test(which is scratching it ti see if its hard or not).
Diamonds do not have a metallic luster; diamond luster is adamantine to waxy.
the answer is luster/
All minerals have luster. There are different types of luster. Pyrite has metallic luster.
One physical test that can be used to distinguish between a metal element and a non-metal element is the ability to conduct electricity. Metals generally conduct electricity well, whereas non-metals are poor conductors. Another test is the luster or appearance - metals are usually shiny and have a metallic luster, while non-metals are dull in appearance.