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Roadcut Section, Poihipi Road, Taupo District, Waikato Region, North Island, New Zealand

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Latitude & Longitude (WGS84): 38° 35' 8'' South , 175° 57' 12'' East
Latitude & Longitude (decimal): -38.58583,175.95361
GeoHash:G#: rcjh7ztt0
Locality type:Section
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical names associated with this locality:, Ben Lomond, Aerodrome Road (fault), Taupo source obsidian


Obsidian appears in outcrops on both sides of the road.

".... the flow stratigraphy, best seen at the Poihipi roadcut, is a section through the lava flow carapace comprising: finely vesicular pumice (FVP) with platy obsidian clasts; spherulitic black obsidian (OBS); and pinkish pumiceous breccia that cuts both the FVP and OBS units." (Stevenson et al, 1994)

A second excavation has been started on the Northern side of the road, a few metres further East and this has uncovered an area of vuggy, ribbons of obsidian (2018)

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Roadcut, Poihipi Rd, Taupo

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


3 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Breccia'
Reference: Stevenson, R.J., Briggs, R.M., Hodder, A.P.W. (1994) Physical volcanology and emplacement history of the Ben Lomond rhyolite lava flow, Taupo Volcanic Centre, New Zealand.New Zealand Journal of Geology and Geophysics, 37:3, 345-358.
Cristobalite
Formula: SiO2
Reference: Collection of RJ Martin
Hematite
Formula: Fe2O3
Reference: Collection of RJ Martin
'Obsidian'
Reference: Stevenson, R.J., Briggs, R.M., Hodder, A.P.W. (1994) Physical volcanology and emplacement history of the Ben Lomond rhyolite lava flow, Taupo Volcanic Centre, New Zealand.New Zealand Journal of Geology and Geophysics, 37:3, 345-358.
'commodity:Perlite'
Reference: Collection of RJ Martin
'Pumice'
Reference: Stevenson, R.J., Briggs, R.M., Hodder, A.P.W. (1994) Physical volcanology and emplacement history of the Ben Lomond rhyolite lava flow, Taupo Volcanic Centre, New Zealand.New Zealand Journal of Geology and Geophysics, 37:3, 345-358.
Sanidine
Formula: K(AlSi3O8)
Reference: Collection of RJ Martin

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Cristobalite'4.DA.15SiO2
'Hematite'4.CB.05Fe2O3
Group 9 - Silicates
'Sanidine'9.FA.30K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Breccia'-
'Obsidian'-
'Pumice'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Cristobalite75.1.1.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Sanidine76.1.1.2K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Breccia'-
'Obsidian'-
'Pumice'-

List of minerals for each chemical element

OOxygen
O CristobaliteSiO2
O HematiteFe2O3
O SanidineK(AlSi3O8)
AlAluminium
Al SanidineK(AlSi3O8)
SiSilicon
Si CristobaliteSiO2
Si SanidineK(AlSi3O8)
KPotassium
K SanidineK(AlSi3O8)
FeIron
Fe HematiteFe2O3

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Stevenson, R.J., Briggs, R.M., Hodder, A.P.W. (1994) Physical volcanology and emplacement history of the Ben Lomond rhyolite lava flow, Taupo Volcanic Centre, New Zealand.New Zealand Journal of Geology and Geophysics, 37:3, 345-358.
Moore, P.R. (2011) The Taupo obsidian source, central North Island, New Zealand. Journal of the Royal Society of New Zealand, 41:2, 205-215.


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.
 
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