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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Hornblende Root Name Group from
Rambydalen Quarry, Ullensaker, Akershus, Norway


Locality type:Quarry
Classification
Species:'Hornblende Root Name Group' (not an IMA approved species)
Formula:◻Ca2(C42+C3+)(AlSi7O22)W2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hornblende Root Name Group data
Locality Data:Click here to view Rambydalen Quarry, Ullensaker, Akershus, Norway
Data Identifiers
Mindat Occurrence Record ID:703197
Long-form Identifier:1:3:703197:7
GUID (UUID V4):0
Nearest other occurrences of Hornblende Root Name Group
22.1km (13.7 miles) ⓘKristiansen Quarry (Bånkall Quarry), Bånkall, Grorud, Oslo, Norway
24.3km (15.1 miles) ⓘHuken Quarry, Grorud, Oslo, Norway
27.6km (17.1 miles) ⓘTonsenplassen, Oslomarka, Oslo, Norway
27.7km (17.2 miles) ⓘMidtmoen, Øståsen, Lunner, Akershus, Norway
33.3km (20.7 miles) ⓘKalkovnen, Østhagan Nature Reserve, Grua mining district, Lunner, Akershus, Norway
39.9km (24.8 miles) ⓘHaga Prospects, Bærum (Baerum), Akershus, Norway
76.6km (47.6 miles) ⓘSkuterud Mines, Modum West, Modum, Buskerud, Norway
References
 
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