geomaterials_polytypeof: retrieve the geomaterials by an given id of polytype of (the id of the mineral that this record is the polytype of. )
Description
: Queries the geomaterials by an given id for its polytype.
A mineral that differs from another only in the stacking of similar structural units in its atomic structure
Usage
geomaterials_polytypeof(ptype, ...)
Value
df, a data frame of geomaterials
Arguments
ptype
integer. an mindat id of the mineral that this record is the polytype of
...,
Further named parameters.Other optional arguments.
Details
This function releated to the field "polytypeof" of geomaterials.
retrieve the geomaterials with an given id of polytypeof.