def_minerals {rmacrostrat} | R Documentation |
Define minerals
Description
A function to retrieve mineral definitions from the Macrostrat database based on user-specified arguments. If no arguments are provided, all definitions are returned.
Usage
def_minerals(mineral = NULL, mineral_type = NULL, element = NULL)
Arguments
mineral |
|
mineral_type |
|
element |
|
Value
A data.frame
containing the following columns:
-
mineral_id
: The unique identification number of the mineral. -
mineral
: The name of the mineral. -
mineral_type
: The name of the type of mineral. -
formula
: The chemical formula of the mineral. -
formula_tags
: The chemical formula of the mineral with appropriate sub/superscript html tags. -
url
: A URL for the mineral's entry in Mindat. -
hardness_min
: The minimum hardness value (Mohs Hardness Scale) of the mineral. -
hardness_max
: The maximum hardness value (Mohs Hardness Scale) of the mineral. -
crystal_form
: The crystal form of the mineral. -
mineral_color
: A description of the color of the mineral. -
lustre
: A description of the lustre of the mineral.
Developer(s)
Lewis A. Jones
Reviewer(s)
Bethany Allen
See Also
Geologic features and attributes:
def_econs()
,
def_environments()
,
def_grain_sizes()
,
def_lithologies()
,
def_lithology_att()
,
def_measurements()
,
def_structures()
Examples
# Get all mineral definitions
ex1 <- def_minerals()
# Get mineral definitions by type
ex2 <- def_minerals(mineral_type = "element")