Rocks are solid masses composed of combinations of minerals, while minerals are naturally occurring inorganic compounds with unique chemical structures and physical properties. For example, quartz and feldspar are minerals that together form the rock granite. Minerals are identified based on their physical properties, including luster, transparency, color, streak, cleavage, fracture, hardness, and other characteristics like magnetism, acid reaction, taste, and feel. Proper identification requires examining multiple properties rather than relying on any single characteristic like color alone.
67. Ductile bends easily and
does not return to its original
shape.
Flexible bends somewhat
and does not return to its
original shape.
Ductile bends easily and
does not return to its original
shape.
Flexible bends somewhat
and does not return to its
original shape.
73. To test a mineral for
magnetism, just put the
magnet and mineral together
and see if they are attracted.
74.
75.
76. Reaction with Acid.
Some minerals, especially
carbonate minerals, react
visibly with acid. (Usually, a
dilute hydrochloric acid [HCl]
is used.)
77. Taste, Odor, Feel
Some minerals have a
distinctive taste, some a
distinctive odor, and some a
distinctive feel
Hinweis der Redaktion
manganite
stellerite
White topaz
Pearl quartz
anatase
muscovite
orpiment
A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. Minerals may be metallic, like gold, or nonmetallic, such as talc.https://mineralseducationcoalition.org/mining-minerals-information/minerals-elements/