Look for vapour phase minerals in the boulders around the shore line. This was the site of the Ponui Pa (fortified village) and is often called Ponui Point by locals.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Perlite

Mineral List

12 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Obsidian

ⓘ Rhyolite

Detailed Mineral List:

ⓘ Augite

Formula: (Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

References:

Rhyolitic Lavas, New Zealand Journal of Geology and Geophysics, 11:2, 478-545

A. Ewart (1968) The Petrography of the Central North Island

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

References:

ko jansen

ⓘ Cristobalite

Formula: SiO₂

References:

Collection of RJ Martin

ⓘ Edenite

Formula: NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂

References:

Collection of RJ Martin correlated to examples in related Taupo rhyolites

ⓘ Fayalite

Formula: Fe²⁺₂SiO₄

References:

Collection of RJ Martin

www.mineralienatlas.de (2001) http://www.mineralienatlas.de

ⓘ Hematite

Formula: Fe₂O₃

References:

Sorrell, Steve (n.d.) Personal communication.

Collection of RJ Martin

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂

ⓘ 'Hypersthene'

Formula: (Mg,Fe)SiO₃

References:

Rhyolitic Lavas, New Zealand Journal of Geology and Geophysics, 11:2, 478-545

A. Ewart (1968) The Petrography of the Central North Island

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

ko jansen

ⓘ 'Mica Group'

References:

Collection of RJ Martin

ⓘ Mullite

Formula: Al_4+2xSi_2-2xO_10-x

References:

Collection of RJ Martin

ko jansen

ⓘ Opal

Formula: SiO₂ · nH₂O

References:

Collection of RJ Martin

ⓘ Opal var. Common Opal

Formula: SiO₂ · nH₂O

References:

Collection of RJ Martin

ⓘ Phlogopite

Formula: KMg₃(AlSi₃O₁₀)(OH)₂

References:

Collection of RJ Martin

www.mineralienatlas.de (2001) http://www.mineralienatlas.de

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

Rhyolitic Lavas, New Zealand Journal of Geology and Geophysics, 11:2, 478-545

A. Ewart (1968) The Petrography of the Central North Island

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

Collection of RJ Martin

ⓘ Quartz

Formula: SiO₂

References:

Collection of RJ Martin correlated to similar exposures in Taupo Volcanic zone

ⓘ Titanite

Formula: CaTi(SiO₄)O

References:

ko jansen

ⓘ Tridymite

Formula: SiO₂

References:

Collection of RJ Martin

Gallery:

(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆ⓘ Augite

K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ⓘ 'Biotite'

NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂ⓘ Edenite

Fe²⁺₂SiO₄ⓘ Fayalite

Fe₂O₃ⓘ Hematite

Fe²⁺Fe³⁺₂O₄ⓘ Magnetite

ⓘ 'Mica Group'

Al_4+2xSi_2-2xO_10-xⓘ Mullite

KMg₃(AlSi₃O₁₀)(OH)₂ⓘ Phlogopite

CaTi(SiO₄)Oⓘ Titanite

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Opal	4.DA.10	SiO₂ · nH₂O
ⓘ	var. Common Opal	4.DA.10	SiO₂ · nH₂O
ⓘ	Tridymite	4.DA.10	SiO₂
ⓘ	Cristobalite	4.DA.15	SiO₂
Group 9 - Silicates
ⓘ	Fayalite	9.AC.05	Fe²⁺₂SiO₄
ⓘ	Mullite	9.AF.20	Al_4+2xSi_2-2xO_10-x
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Edenite	9.DE.15	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂
ⓘ	Phlogopite	9.EC.20	KMg₃(AlSi₃O₁₀)(OH)₂
Unclassified
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Hypersthene'	-	(Mg,Fe)SiO₃
ⓘ	'Mica Group'	-
ⓘ	'Hornblende Root Name Group'	-	◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Pyroxene Group'	-	ADSi₂O₆

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Edenite	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂
H	ⓘ Opal	SiO₂ · nH₂O
H	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
H	ⓘ Opal var. Common Opal	SiO₂ · nH₂O
H	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
O	Oxygen
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Cristobalite	SiO₂
O	ⓘ Edenite	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂
O	ⓘ Fayalite	Fe₂²⁺SiO₄
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Hypersthene	(Mg,Fe)SiO₃
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Mullite	Al_4+2xSi_2-2xO_10-x
O	ⓘ Opal	SiO₂ · nH₂O
O	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Tridymite	SiO₂
O	ⓘ Opal var. Common Opal	SiO₂ · nH₂O
O	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Pyroxene Group	ADSi₂O₆
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Na	Sodium
Na	ⓘ Edenite	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Edenite	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂
Mg	ⓘ Hypersthene	(Mg,Fe)SiO₃
Mg	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Al	Aluminium
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Edenite	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂
Al	ⓘ Mullite	Al_4+2xSi_2-2xO_10-x
Al	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Al	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Cristobalite	SiO₂
Si	ⓘ Edenite	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂
Si	ⓘ Fayalite	Fe₂²⁺SiO₄
Si	ⓘ Hypersthene	(Mg,Fe)SiO₃
Si	ⓘ Mullite	Al_4+2xSi_2-2xO_10-x
Si	ⓘ Opal	SiO₂ · nH₂O
Si	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Tridymite	SiO₂
Si	ⓘ Opal var. Common Opal	SiO₂ · nH₂O
Si	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Pyroxene Group	ADSi₂O₆
Cl	Chlorine
Cl	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Edenite	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Fe	Iron
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Fayalite	Fe₂²⁺SiO₄
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Hypersthene	(Mg,Fe)SiO₃
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄

Other Regions, Features and Areas containing this locality

New Zealand

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