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Waterfall Creek, Golden Blocks Goldfield, Tasman Region, New Zealandi
Regional Level Types
Waterfall CreekCreek
Golden Blocks GoldfieldOre Field
Tasman RegionDistrict
New ZealandCountry

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Latitude & Longitude (WGS84):
40° 41' 39'' South , 172° 25' 31'' East
Latitude & Longitude (decimal):
-40.69423,172.42532
GRN:
S28E94
Type:
Creek
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Takaka1,223 (2011)36.0km
Mindat Locality ID:
15342
Long-form identifier:
mindat:1:2:15342:0
GUID (UUID V4):
0


Cymrite is a rare barium tectosilicate, first discovered in 1949. The cymrite locality on Waterfall Creek was the first discovery of the species in New Zealand, found by the New Zealand Geological Survey in 1975.

It is found in a pale coloured band, 5 mms thick, with a narrow pyrite rich layer, with quartz, illite, calcite and mica, in a dense graphtolite-bearing sequence of black shale and chert.

The crystals only reach a maximum of 0.15 mms, confirmed by x-ray diffraction, and a microscope. There is no indication of specimen grade material.

Waterfall Creek could not be located, but the source (Soong et al.) states the location is in the Aorangi Mine area.

Co-ordinates are approximate.

The co-ordinates cited by Soong are: 40 42' 57" S; 172 26' I5" E, however this places the location within the Tasman Sea.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 valid minerals.

Detailed Mineral List:

ⓘ Calcite
Formula: CaCO3
ⓘ Cymrite
Formula: BaAl2Si2(O,OH)8 · H2O
ⓘ 'Mica Group'
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘCymrite9.EG.05BaAl2Si2(O,OH)8 · H2O
Unclassified
ⓘ'Mica Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ CymriteBaAl2Si2(O,OH)8 · H2O
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ CalciteCaCO3
Oⓘ CymriteBaAl2Si2(O,OH)8 · H2O
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
AlAluminium
Alⓘ CymriteBaAl2Si2(O,OH)8 · H2O
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ CymriteBaAl2Si2(O,OH)8 · H2O
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
SSulfur
Sⓘ PyriteFeS2
KPotassium
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
FeIron
Feⓘ PyriteFeS2
BaBarium
Baⓘ CymriteBaAl2Si2(O,OH)8 · H2O

Other Regions, Features and Areas containing this locality

Australian PlateTectonic Plate
New Zealand

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.

References

Soong, R., Olivecrona, J.A. (1975) An occurrence of cymrite in black shale, north-west Nelson, South Island, New Zealand. Mineralogical Magazine, 40 (311) 311-312 doi:10.1180/minmag.1975.040.311.13
Railton, G. T., Watters, W. A. (1990) Minerals of New Zealand. New Zealand Geological Survey Bulletin 104. New Zealand Geological Survey
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