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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Jarosite from
Gravel Hill Mine (Cliff Iron Mine; Penhale Iron Mine), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK


05629040017360850328611.jpg
Jarosite, etc.

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
04905180017271997659841.jpg
Jarosite, etc.

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
06614740017271997666876.jpg
Jarosite

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
05629040017360850328611.jpg
Jarosite, etc.

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
04905180017271997659841.jpg
Jarosite, etc.

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
01570770017369894605620.jpg
Jarosite

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
00403120017360850339897.jpg
Jarosite, etc.

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
04905180017271997659841.jpg
Jarosite, etc.

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
06614740017271997666876.jpg
Jarosite

Gravel Hill Mine, Perran Iron Lode, Perranzabuloe, Cornwall, England, UK
Locality type:Mine
Classification
Species:Jarosite
Formula:KFe33+(SO4)2(OH)6
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Gypsum2
Data
Mineral Data:Click here to view Jarosite data
Locality Data:Click here to view Gravel Hill Mine (Cliff Iron Mine; Penhale Iron Mine), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:6530
Long-form Identifier:1:3:6530:6
GUID (UUID V4):0
Nearest other occurrences of Jarosite
2.4km (1.5 miles) ⓘWheal Mexico (Trebellan Mine; incl. Treworthy Mine), Perranzabuloe, Cornwall, England, UK
15.3km (9.5 miles) ⓘWheal Maid, Gwennap, Cornwall, England, UK
17.6km (10.9 miles) ⓘSouth Terras Mine (Resugga & Tolgarrick Mine; Union Mine; Uranium Mine), St Stephen-in-Brannel, Cornwall, England, UK
32.6km (20.3 miles) ⓘPenberthy Croft Mine, St Hilary, Cornwall, England, UK
34.8km (21.6 miles) ⓘWheal Penrose, Porthleven, Cornwall, England, UK
46.4km (28.8 miles) ⓘWheal Cock, Botallack Mine, Botallack, St Just, Cornwall, England, UK
46.6km (29.0 miles) ⓘWheal Hazard, Botallack Mine, Botallack, St Just, Cornwall, England, UK
46.8km (29.1 miles) ⓘBotallack Cliff, Cliff outcrops, Botallack, St Just, Cornwall, England, UK
64.0km (39.8 miles) ⓘGreystone Quarry, Lezant, Cornwall, England, UK
65.9km (40.9 miles) ⓘHingston Down Quarry, Gunnislake, Calstock, Cornwall, England, UK
References
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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