Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
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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Lake Superior beaches, Ontonagon, Ontonagon County, Michigan, USAi
Regional Level Types
Lake Superior beachesLake
OntonagonVillage
Ontonagon CountyCounty
MichiganState
USACountry

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Latitude & Longitude (WGS84):
46° 51' 34'' North , 89° 21' 43'' West
Latitude & Longitude (decimal):
46.85944,-89.36194
GeoHash:
G#: f026wd885
GRN:
N32W44
Type:
Lake
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Ontonagon1,324 (2017)3.9km
White Pine474 (2017)20.6km
Marenisco254 (2017)59.4km
Mindat Locality ID:
127231
Long-form identifier:
mindat:1:2:127231:7
GUID (UUID V4):
0


Pebbles of prehnite and agate on nearby beaches.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


2 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz
var. Agate		4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 9 - Silicates
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ PrehniteCa2Al2Si3O10(OH)2
OOxygen
Oⓘ Quartz var. AgateSiO2
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
AlAluminium
Alⓘ PrehniteCa2Al2Si3O10(OH)2
SiSilicon
Siⓘ Quartz var. AgateSiO2
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
CaCalcium
Caⓘ PrehniteCa2Al2Si3O10(OH)2

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp.
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