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Green Mountain, Ascension Island, Saint Helena, Ascension and Tristan da Cunhai
| Regional Level Types | |
|---|---|
| Green Mountain | Mountain |
| Ascension Island | Island |
| Saint Helena， Ascension and Tristan da Cunha | Overseas Territory |
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Latitude & Longitude (WGS84):
7° 57' 5'' South , 14° 20' 33'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Georgetown | 538 (2016) | 8.0km |
Green Mountain is a common name for "The Peak", the highest point on Ascension Island, which has gained some fame for claims that it is one of very few large-scale artificial forests.
Ejected blocks of plutonic igneous facies in the trachytic and basaltic tuffs of Green Mountain.
Dalyite, as colourless, completely transparent, triclinic crystals with short prismatic habit and vitreous lustre, occurs as a rare accessory in medium-grained pinkish-grey alkali-granites mainly composed of microperthitic feldspar and quartz associated in varying proportions with aegirine and a strongly pleochroic green-brown alkali-amphibole.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 valid minerals. 1 (TL) - type locality of 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 DiagramDetailed Mineral List:
| ⓘ Aegirine Formula: NaFe3+Si2O6 |
| ⓘ 'Alkali Feldspar' |
| ⓘ 'Amphibole Supergroup' Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ Dalyite (TL) Formula: K2ZrSi6O15 Type Locality: Description: Accessory in ejected blocks of alkalic granite in trachytic and basaltic tuffs. |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Vlasovite Formula: Na2ZrSi4O11 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Aegirine | 9.DA.25 | NaFe3+Si2O6 |
| ⓘ | Vlasovite | 9.DM.25 | Na2ZrSi4O11 |
| ⓘ | Dalyite (TL) | 9.EA.25 | K2ZrSi6O15 |
| Unclassified | |||
| ⓘ | 'Alkali Feldspar' | - | |
| ⓘ | 'Amphibole Supergroup' | - | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | Oxygen | |
| O | ⓘ Aegirine | NaFe3+Si2O6 |
| O | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Dalyite | K2ZrSi6O15 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Vlasovite | Na2ZrSi4O11 |
| F | Fluorine | |
| F | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Na | Sodium | |
| Na | ⓘ Aegirine | NaFe3+Si2O6 |
| Na | ⓘ Vlasovite | Na2ZrSi4O11 |
| Al | Aluminium | |
| Al | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | Silicon | |
| Si | ⓘ Aegirine | NaFe3+Si2O6 |
| Si | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Dalyite | K2ZrSi6O15 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Vlasovite | Na2ZrSi4O11 |
| Cl | Chlorine | |
| Cl | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| K | Potassium | |
| K | ⓘ Dalyite | K2ZrSi6O15 |
| Ti | Titanium | |
| Ti | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Fe | Iron | |
| Fe | ⓘ Aegirine | NaFe3+Si2O6 |
| Zr | Zirconium | |
| Zr | ⓘ Dalyite | K2ZrSi6O15 |
| Zr | ⓘ Vlasovite | Na2ZrSi4O11 |
Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Green_Mountain |
|---|---|
| Wikidata ID: | Q5602884 |
Other Regions, Features and Areas containing this locality
Atlantic Ocean
- Mid-Atlantic Ridge complexMid-Ocean Ridge
- South American BasinOceanic Crust
South America PlateTectonic Plate
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