Mineral basics

import MagmaPandas as mp

Read some olivine data from a csv file

olivine_file = "./data/olivines.csv"

olivine = mp.read_olivine(olivine_file, index_col=["name"])
olivine.head()

	SiO2	FeO	MgO	NiO	MnO	Al2O3	CaO	total
name
PI032-01-04	38.495300	16.0033	44.428299	0.168422	0.232958	0.040249	0.250944	99.619470
PI032-02-01	37.876900	15.9098	44.320702	0.178717	0.225693	0.018274	0.243341	98.773420
PI032-02-03	38.040001	15.8851	44.249001	0.181972	0.232036	0.012135	0.251493	98.851740
PI032-03-01	38.278000	15.6225	44.429501	0.167173	0.220208	0.018356	0.252743	98.988490
PI032-04-01	38.204800	15.9814	44.194000	0.172665	0.234256	0.005229	0.240552	99.032906

On top of the regular MagmaFrame methods, mineral MagmaFrames have additional methods for calculating

• mineral formulas and

• chemical components of minerals (anorthite, forsterite etc.)

In this example we’re using olivine, but MagmaPandas also supports plagioclase and clinopyroxene

Mineral formulas and olivine forsterite contents are calculated by accessing their attributes

olivine.formula

	Si	Fe	Mg	Ni	Mn	Al	Ca	O
name
PI032-01-04	0.979029	0.340381	1.684450	0.003446	0.005018	0.001206	0.006838	4
PI032-02-01	0.972703	0.341695	1.696771	0.003692	0.004909	0.000553	0.006696	4
PI032-02-03	0.975611	0.340717	1.691805	0.003754	0.005041	0.000367	0.006911	4
PI032-03-01	0.978478	0.333980	1.693106	0.003438	0.004768	0.000553	0.006922	4
PI032-04-01	0.977965	0.342128	1.686473	0.003555	0.005079	0.000158	0.006598	4
PI032-04-02	0.991057	0.341036	1.662083	0.003880	0.004771	-0.000221	0.006448	4
PI032-04-03	0.993491	0.344590	1.653409	0.003440	0.004778	0.000013	0.006782	4
PI032-05-01	1.012957	0.392180	1.564839	0.003003	0.005612	0.001416	0.006328	4
PI041-02-01	0.973371	0.448601	1.588740	0.002227	0.006305	0.000731	0.006286	4
PI041-02-02	0.970036	0.453097	1.591409	0.002193	0.006474	0.000508	0.005994	4

olivine.forsterite

name
PI032-01-04    0.831896
PI032-02-01    0.832376
PI032-02-03    0.832367
PI032-03-01    0.835241
PI032-04-01    0.831348
PI032-04-02    0.829748
PI032-04-03    0.827532
PI032-05-01    0.799603
PI041-02-01    0.779810
PI041-02-02    0.778383
Name: Fo#, dtype: float64