Penglai Gem deposit, Penglai, Ding'an Co., Hainan, Chinai
Regional Level Types | |
---|---|
Penglai Gem deposit | Deposit |
Penglai | - not defined - |
Ding'an Co. | County |
Hainan | Province |
China | Country |
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Latitude & Longitude (WGS84):
19° 32' 23'' North , 110° 32' 10'' East
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
145082
Long-form identifier:
mindat:1:2:145082:1
GUID (UUID V4):
242c97c2-391b-48af-91db-ac24f85553cb
Outcrops of Cenozoic volcanic rocks, consisting of pyroxene-olivine basalt, alkaline olivine basalt and pyroclastic rocks. They contain abundant mantle xenoliths of lherzolite and olivine websterite, and xenocrysts of olivine, corundum and other minerals. The mining area is about 35 km2.
Penglai sapphire has a magmatic origin, mostly showing various shapes of incomplete girdles, barrels, and flakes. The content of Ti in rims is higher than in cores of color-banded sapphire, which results from ubiquitous Ti-bearing inclusions within grown bands. The main chromophore of the deep-blue core is Fe2+-Ti4+, which pairs with Fe3+-Fe3+, Cr3+, and V3+ in the core, likely producing purple-hued blue in an oxidizing environment. The yellowish-brown rim is due to Fe3+ and Cr3+ in a reduced environment.
Located about 2 km SE of Penglai City.
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
8 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:
β 'Clinopyroxene Subgroup' |
β Columbite-(Fe) Formula: Fe2+Nb2O6 Description: Found as inclusions in corundum. |
β Corundum Formula: Al2O3 References: |
β Corundum var. Ruby ? Formula: Al2O3 |
β Corundum var. Sapphire Formula: Al2O3 References: |
β 'Fayalite-Forsterite Series' |
β 'Feldspar Group' References: |
β Ilmenite Formula: Fe2+TiO3 References: |
β Magnetite Formula: Fe2+Fe3+2O4 References: |
β Magnetite var. Titanium-bearing Magnetite Formula: Fe2+(Fe3+,Ti)2O4 |
β 'Olivine Group' Formula: M2SiO4 |
β 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
β Pyrope Formula: Mg3Al2(SiO4)3 |
β 'Pyroxene Group' Formula: ADSi2O6 References: |
β Quartz Formula: SiO2 |
β Spinel Formula: MgAl2O4 |
β Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 4 - Oxides and Hydroxides | |||
---|---|---|---|
β | Magnetite var. Titanium-bearing Magnetite | 4.BB.05 | Fe2+(Fe3+,Ti)2O4 |
β | Spinel | 4.BB.05 | MgAl2O4 |
β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
β | Corundum | 4.CB.05 | Al2O3 |
β | var. Ruby ? | 4.CB.05 | Al2O3 |
β | var. Sapphire | 4.CB.05 | Al2O3 |
β | Ilmenite | 4.CB.05 | Fe2+TiO3 |
β | Quartz | 4.DA.05 | SiO2 |
β | Columbite-(Fe) | 4.DB.35 | Fe2+Nb2O6 |
Group 9 - Silicates | |||
β | Pyrope | 9.AD.25 | Mg3Al2(SiO4)3 |
β | Zircon | 9.AD.30 | Zr(SiO4) |
Unclassified | |||
β | 'Feldspar Group' | - | |
β | 'Clinopyroxene Subgroup' | - | |
β | 'Fayalite-Forsterite Series' | - | |
β | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
β | 'Pyroxene Group' | - | ADSi2O6 |
β | 'Olivine Group' | - | M2SiO4 |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
AsiaContinent
Eurasian PlateTectonic Plate
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