Evening Star claim, Waiotahi Creek, Thames, Thames-Coromandel District, Waikato Region, New Zealandi
| Regional Level Types | |
|---|---|
| Evening Star claim | Claim |
| Waiotahi Creek | Creek |
| Thames | Town |
| Thames-Coromandel District | District |
| Waikato Region | Region |
| New Zealand | Country |
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A gold claim reported active in 1881.
W.D. Campbell in "Notes on a Pseudomorphous Form of Gold" suggests that a specimen of gold from the Evening Star Claim at the Waiotahi Creek, is of the form apparently that botryogen formed by the decomposition of pyrites.
"The occurrence of gold pseudomorphous crystals has not been hitherto observed, I believe, so that this specimen, which was obtained from a white clay, taken from a leader in a drive of the Evening Star Claim, at the Waiotahi Creek, Thames, is of great interest. It is reinform-shaped, about ½ inch in length, and covered with minute crystals and filaments studded sparsely with minute irregular-shaped grains of a yellowish-brown mineral, insoluble in acids which is probably zircon".
It should be noted that there does not appear to be a mining claim called Evening Star on the Thames gold field. Named "Star" claims include, North Star, Golden Star, New Middle Star, Star of England, and Star of England Extended.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 valid minerals.
* - Minerals that have never been found, but their existence is inferred in some way (e.g. from pseudomorphs)
Rock Types Recorded
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Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Botryogen Formula: MgFe3+(SO4)2(OH) · 7H2O |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite ? | 2.EB.05a | FeS2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Botryogen ? | 7.DC.25 | MgFe3+(SO4)2(OH) · 7H2O |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Botryogen | MgFe3+(SO4)2(OH) · 7H2O |
| O | Oxygen | |
| O | ⓘ Botryogen | MgFe3+(SO4)2(OH) · 7H2O |
| O | ⓘ Zircon | Zr(SiO4) |
| Mg | Magnesium | |
| Mg | ⓘ Botryogen | MgFe3+(SO4)2(OH) · 7H2O |
| Si | Silicon | |
| Si | ⓘ Zircon | Zr(SiO4) |
| S | Sulfur | |
| S | ⓘ Botryogen | MgFe3+(SO4)2(OH) · 7H2O |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Botryogen | MgFe3+(SO4)2(OH) · 7H2O |
| Fe | ⓘ Pyrite | FeS2 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
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