Mineraloids is a lecture from the school of geology and the chemistry school. It is about substances that does not show or have crystallinity that occur in and compose astronomical objects including the Earth.

Various natural pearls are shown. Credit: MASAYUKI KATO.

You are free to take this quiz based on mineraloids at any time.

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Quiz Edit


1 Yes or No, Aluminum is a metalloid element.


2 A mineraloid is a substance that does not show or have


3 True or False, A natural hard rubber especially when black or unfilled is called an ebonite.


4 Limonite is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying


5 True or False, Although originally defined as a single mineral, limonite is now recognized as a mixture of related hydrated iron oxide minerals, among them goethite, akaganeite, lepidocrocite, and jarosite.


6 Complete the text:

Because of its

nature, and occurrence in hydrated areas limonite often presents as a

or mudstone.

7 Yes or No, A flammable liquid ranging in color from clear to very dark brown and black, consisting mainly of hydrocarbons, occurring naturally in deposits under the Earth's surface is called a petroleum.


8 Tar is associated with which of the following

derived from organic materials such as wood, peat, or coal
predicting the end of the Earth
viscous substance

9 Yes or No, A natural, waxy hydrocarbon mineraloid is called a zietrisikite.


10 A hard, generally yellow to brown translucent fossil resin is called

11 True or False, A naturally occurring black glass is called an obsidian.


Hypotheses Edit

  1. Mineraloids are a generic for formation conditions.

See also Edit

External links Edit

{{Radiation astronomy resources}}

{{Geology resources}}