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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Enricofrancoite type locality, Ottaviano, Metropolitan City of Naples, Campania, Italyi
Regional Level Types
Enricofrancoite type localityVolcanic Field
OttavianoCommune
Metropolitan City of NaplesMetropolitan City
CampaniaRegion
ItalyCountry

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Latitude & Longitude (WGS84):
40° 49' 17'' North , 14° 25' 35'' East
Latitude & Longitude (decimal):
40.82139,14.42639
GeoHash:
G#: sr620r2cz
GRN:
N28E08
Type:
Volcanic Field
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Mindat Locality ID:
435542
Long-form identifier:
mindat:1:2:435542:0
GUID (UUID V4):
0


Metamorphosed lapilli with crusts bearing enricofrancoite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral. 1 (TL) - type locality of valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘEnricofrancoite (TL)9.DG.70KNaCaSi4O10

List of minerals for each chemical element

OOxygen
Oⓘ EnricofrancoiteKNaCaSi4O10
NaSodium
Naⓘ EnricofrancoiteKNaCaSi4O10
SiSilicon
Siⓘ EnricofrancoiteKNaCaSi4O10
KPotassium
Kⓘ EnricofrancoiteKNaCaSi4O10
CaCalcium
Caⓘ EnricofrancoiteKNaCaSi4O10

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Italy

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Bosi, Ferdinando, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2023) Newsletter 74. Mineralogical Magazine, 87 (5) 783-787 doi:10.1180/mgm.2023.54
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