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Paragenetic Mode 29 : Lightning-generated minerals

Return to the list of paragentic modes

Description

A small suite of highly reduced minerals, including silicon metal, graphite, iron, moissanite, and schreibersite, is associated with the production of fulgurites by lightning strikes.

Stage

Near-surface Processes
21 : Chemically precipitated carbonate, phosphate, iron formations
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
24 : Authigenic minerals in terrestrial sediments (see also #17)
25 : Evaporites (prebiotic)
26 : Hadean detrital minerals
27 : Radioactive decay; auto-oxidation
28 : Photo-alteration, pre-biotic
29 : Lightning-generated minerals
30 : Terrestrial impact minerals

Minerals

Click on a button to filter by elements. Green = must include. Black = must exclude. Mineral names listed in bold are exclusively known from this paragenetic mode.

MineralFormulaCrystal System
BütschliiteK2Ca(CO3)2Trigonal
GraphiteCHexagonal
LeadPbIsometric
LechatelieriteSiO2Amorphous
MoissaniteSiCHexagonal
Schreibersite(Fe,Ni)3PTetragonal
SiliconSiIsometric
ZangboiteTiFeSi2Orthorhombic
ZirconZr(SiO4)Tetragonal
ElementCountPercent
CCarbon333.33%
OOxygen333.33%
SiSilicon555.56%
PPhosphorus111.11%
KPotassium111.11%
CaCalcium111.11%
TiTitanium111.11%
FeIron222.22%
NiNickel111.11%
ZrZirconium111.11%
PbLead111.11%

References

Hazen, Robert M., Morrison, Shaunna M. (2022) On the paragenetic modes of minerals: A mineral evolution perspective. American Mineralogist, 107 (7) 1262-1287 doi:10.2138/am-2022-8099
 
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