A mineraloid is a mineral-like substance that does not demonstrate crystallinity.
Mineraloids ... Pearl, considered by some to be a mineral because of the
presence of calcium carbonate crystals with...
Coal is not considered a mineral because it does not have a solid, uniform crystal
structure, meaning it doesn't fit the primary definition of a mineral. Coal is ...
If something is to be classified as a mineral, it have to fulfill the following criteria; 1
. Naturally occuring (i.e. it has to form by natural processes) 2. Stable at room ...
A mineral is a naturally occuring, homogeneous, solid with a crystalline atomic ...
however both diamonds and graphite are considered minerals, and both are ...
Coal is not a mineral, because it can not be expressed as a chemical formula, ...
Re: If coal is not a mineral because it is organic, why is diamond a mineral? Date:
Mon Dec 1 20:29:43 2003. Posted By: David Smith, Director of Professional ...
Mar 2, 2013 ... As a geologist … a scientist (and certainly not a lawyer), we know the answer is, “
No”. ... from the Marcellus Shale and the shale itself are legally considered a
mineral. ... Coal can be an economically mineable “mineral”.
To be considered a mineral it must have been formed by natural geologic
processes. ... This classifies it as an organic compound and so is not a mineral.
Coal on the other hand also comes from plants (organic) and is generally
considered a ...
A natural snowflake would be considered to be a mineral because it forms
naturally in Earth's atmosphere. However an ice cube made in a refrigerator
would not ...
Oct 12, 2015 ... Something just clicked in my head today. Rocks, by the definition I was taught,
are composed of minerals which in turn are by definition not ...
Traditionally and officially, native mercury is considered a mineral, even though
the metal ... The substances that make up coal, for instance, are different kinds of