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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Quartz from
Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK


01350600017272006437525.jpg
Smoky Quartz

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
08131690017364086859577.jpg
Quartz, etc.

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
04644790017271980516485.jpg
Quartz

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
01350600017272006437525.jpg
Smoky Quartz

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
08131690017364086859577.jpg
Quartz, etc.

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
04644790017271980516485.jpg
Quartz

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
01350600017272006437525.jpg
Smoky Quartz

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
08131690017364086859577.jpg
Quartz, etc.

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
04644790017271980516485.jpg
Quartz

Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
Locality type:Pit
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Turquoise10
- var Rashleighite7
Wavellite7
Stannite2
Cassiterite2
Metatorbernite2
Jasper2
Fluorite2
Variscite1
Kaolinite1
Libethenite1
Stannite Group1
Tourmaline1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:43377
Long-form Identifier:1:3:43377:6
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.4km (0.2 miles) ⓘBunny Mine, Stenalees, Treverbyn, Cornwall, England, UK
0.5km (0.3 miles) ⓘHensbarrow China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
1.0km (0.6 miles) ⓘHigher Ninestones China Clay Pit, Carbean, Treverbyn, Cornwall, England, UK
1.1km (0.7 miles) ⓘGoonbarrow China Clay Pit, Bugle, Treverbyn, Cornwall, England, UK
1.1km (0.7 miles) ⓘLower Ninestones China Clay Pit, Carbean, Treverbyn, Cornwall, England, UK
1.3km (0.8 miles) ⓘImperial Goonbarrow China Clay Works, Bugle, Treverbyn, Cornwall, England, UK
1.7km (1.1 miles) ⓘOld Beam Mine (Great Beam Mine), Bugle, Treverbyn, Cornwall, England, UK
1.8km (1.1 miles) ⓘGreat Longstone China Clay Pit, Longstone Downs, St Mewan, Cornwall, England, UK
3.0km (1.9 miles) ⓘCarclaze Old Tin Pit, Carclaze China Clay Pit (Baal China Clay Pit), Carludon, Treverbyn, Cornwall, England, UK
3.9km (2.4 miles) ⓘCriggan Mine (Criggan Consols), Criggan, Roche, Cornwall, England, UK
References
Barstow, R. W. (1982) Variscite from Hensbarrow china clay works, St. Austell, Cornwall. Mineralogical Magazine, 46 (341) 512 doi:10.1180/minmag.1982.046.341.23
Econ Geol (1995) 90:495-519
Elton, N. J., Hooper, J.J., Coggon, L. (1996) Morinite from Gunheath China Clay Pit, St Austell, Cornwall. Mineralogical Magazine, 60 (400) 517-518 doi:10.1180/minmag.1996.060.400.14
Tindle, Andy G. (2008) Minerals of Britain and Ireland. Terra Publishing.
 
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