Log In
Esiva deposit, Esiva, Maromby, Amboasary Sud District, Anosy, Madagascari
| Regional Level Types | |
|---|---|
| Esiva deposit | Deposit |
| Esiva | Village |
| Maromby | Commune |
| Amboasary Sud District | District |
| Anosy | Region |
| Madagascar | Country |
This page is currently not sponsored. Click here to sponsor this page.
Type:
Other/historical names associated with this locality:
P.E. 1439 Hibon
Name(s) in local language(s):
Karieran' i Esiva, Kaominina Maromby, Distrikan'i Amboasary, Faritra Anosy, Faritanin'i Toliary, Madagasikara
This locality, named only "Esiva" in older literature, refers to a pyroxenite vein that has been worked for thorianite and phlogopite. It is situated 5 km west of Andranondambo, which again is situated 20 km northeast of the small town of Tranomaro in the southeastern part of Madagascar. The locality was first registered as "P.E. 1439 Hibon".
Metamorphosed limestone, pyroxenite, gneiss, and granulite of the amphibolite to granulite facies.
The largest Thorianite crystal from this location is 6 cm and weighs ca. 2.2 kg. Since 1962 it has the sample number "106222" (previously 6222) in the "École des mines" in Paris. It was acquired by an exchange.
NOTE:
Not to be confused with the Esiva eluvials, the type locality of Hibonite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
3 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 |
| ⓘ Spinel Formula: MgAl2O4 |
| ✪ Thorianite Formula: ThO2 Habit: cubes Description: Unusually large crystals (Up to several centimeters!).
Exceptional specimen in École des mines, Paris 9 x 9 cm, year 1962 [see Bancroft, Peter (1973) The World's Finest Minerals and Crystals]. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| ⓘ | Thorianite | 4.DL.05 | ThO2 |
| Group 9 - Silicates | |||
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Thorianite | ThO2 |
| Mg | Magnesium | |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘ Spinel | MgAl2O4 |
| Al | Aluminium | |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Spinel | MgAl2O4 |
| Si | Silicon | |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | Potassium | |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Th | Thorium | |
| Th | ⓘ Thorianite | ThO2 |
Other Regions, Features and Areas containing this locality
Madagascar
- Anosy
- Amboasary Sud District
- Tranomaro-Maromby areaMineral Occurrence Area
- Amboasary Sud District
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.
Esiva deposit, Esiva, Maromby, Amboasary Sud District, Anosy, Madagascar