Sapphire deposit, Wutu, Changle County, Weifang, Shandong, Chinai
| Regional Level Types | |
|---|---|
| Sapphire deposit | Deposit |
| Wutu | - not defined - |
| Changle County | County |
| Weifang | Prefecture-level City |
| Shandong | Province |
| China | Country |
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Latitude & Longitude (WGS84):
36° 34' 59'' North , 118° 54' 0'' East
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
145206
Long-form identifier:
mindat:1:2:145206:1
GUID (UUID V4):
d3a5dbc7-2a50-4663-9cd5-800870a526b4
Tertiary olivine tholeiites with porphyritic texture and vesicular or amgydaloidal cavities that are usually filled with calcite, chlorite or analcime. The rocks contain lherzolite and websterite xenoliths, and also megacrysts of a variety of minerals including zircon, spinel, corundum, garnet and feldspar (anorthoclase).
Primary sapphires are located at a distance of 30 m from the mountaintop. The Fangshan grayβblack sapphire-bearing basalt has developed a porphyritic texture and massive structure, with square and hexagonal columnar joints. Irregular horizontal joints are developed. At the bottom of the basalt sequence, the volume of enclaves is rather substantial, with many megacrystals and mantle-derived xenoliths. Megacrystals are mainly composed of olivine, pyroxene, corundum, spinel, titanium magnetite, etc., with a particle size of 0.5~4 cm. The xenoliths include peridotite and pyroxenite, with a particle size of 1~9 cm. There are visible traces of xenolith detachment on the rock wall.
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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
9 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 Albite Formula: Na(AlSi3O8) Description: Found as inclusions in megacrysts of corundum and anorthoclase. |
| β Albite var. Anorthoclase Formula: (Na,K)AlSi3O8 |
| β Albite var. Oligoclase Formula: (Na,Ca)[Al(Si,Al)Si2O8] Description: Found as inclusions in megacrysts of corundum and anorthoclase. |
| β Analcime Formula: Na(AlSi2O6) · H2O |
| β Calcite Formula: CaCO3 |
| β 'Chlorite Group' |
| β 'Clinopyroxene Subgroup' |
| β 'Columbite-(Fe)-Columbite-(Mn) Series' Description: Found as inclusions in corundum megacrysts. |
| β Corundum Formula: Al2O3 |
| β Corundum var. Sapphire Formula: Al2O3 Habit: trapiche Colour: white, blue, black Description: are all trapiche-like sapphires, with white βarmsβ developing around the core. Various sections of the samples were distinguished by visual observation. Detailed inspection of the raw stone reveals subtle changes in different zones. Further polishing made the phenomenon more visible. The arms are generally white, reaching from the mineralβs border to the center and aborting at the cores. The cores are substantially darker in color, typically dark blue or black, whereas the sectors are blue.
It is not a product of basaltic magma crystallization but is more likely derived from the lower crust and is classified as magmatic sapphire. |
| β 'Fayalite-Forsterite Series' |
| β 'Feldspar Group' References: |
| β 'Garnet Group' Formula: X3Z2(SiO4)3 |
| β 'Glass' Description: Also found as inclusions in corundum. |
| β 'Iddingsite' Formula: MgO · Fe2O3 · 3SiO2 · 4H2O References: |
| β Ilmenite Formula: Fe2+TiO3 Description: Found as inclusions in corundum megacrysts. |
| β 'K Feldspar' Description: Found as inclusions in corundum. |
| β Magnetite Formula: Fe2+Fe3+2O4 Description: Found as inclusions in corundum. References: |
| β Magnetite var. Titanium-bearing Magnetite Formula: Fe2+(Fe3+,Ti)2O4 |
| β 'Olivine Group' Formula: M2SiO4 References: |
| β 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| β 'Pyroxene Group' Formula: ADSi2O6 References: |
| β Rutile Formula: TiO2 Description: Found as inclusions in corundum. |
| β Rutile var. Niobium-bearing Rutile Formula: (Ti,Nb)O2 Description: Found as inclusions in corundum. |
| β Spinel Formula: MgAl2O4 References: |
| β Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| β | Spinel | 4.BB.05 | MgAl2O4 |
| β | Magnetite var. Titanium-bearing Magnetite | 4.BB.05 | Fe2+(Fe3+,Ti)2O4 |
| β | 4.BB.05 | Fe2+Fe3+2O4 | |
| β | Corundum | 4.CB.05 | Al2O3 |
| β | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| β | Corundum var. Sapphire | 4.CB.05 | Al2O3 |
| β | Rutile | 4.DB.05 | TiO2 |
| β | var. Niobium-bearing Rutile | 4.DB.05 | (Ti,Nb)O2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| β | Zircon | 9.AD.30 | Zr(SiO4) |
| β | Albite | 9.FA.35 | Na(AlSi3O8) |
| β | var. Anorthoclase | 9.FA.35 | (Na,K)AlSi3O8 |
| β | var. Oligoclase | 9.FA.35 | (Na,Ca)[Al(Si,Al)Si2O8] |
| β | Analcime | 9.GB.05 | Na(AlSi2O6) Β· H2O |
| Unclassified | |||
| β | 'Feldspar Group' | - | |
| β | 'Chlorite Group' | - | |
| β | 'Iddingsite' | - | MgO Β· Fe2O3 Β· 3SiO2 Β· 4H2O |
| β | 'Clinopyroxene Subgroup' | - | |
| β | 'Fayalite-Forsterite Series' | - | |
| β | 'Columbite-(Fe)-Columbite-(Mn) Series' | - | |
| β | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| β | 'K Feldspar' | - | |
| β | 'Pyroxene Group' | - | ADSi2O6 |
| β | 'Garnet Group' | - | X3Z2(SiO4)3 |
| β | 'Glass' | - | |
| β | 'Olivine Group' | - | M2SiO4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Analcime | Na(AlSi2O6) · H2O |
| H | β Iddingsite | MgO · Fe2O3 · 3SiO2 · 4H2O |
| C | Carbon | |
| C | β Calcite | CaCO3 |
| O | Oxygen | |
| O | β Albite | Na(AlSi3O8) |
| O | β Analcime | Na(AlSi2O6) · H2O |
| O | β Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| O | β Calcite | CaCO3 |
| O | β Corundum | Al2O3 |
| O | β Ilmenite | Fe2+TiO3 |
| O | β Magnetite | Fe2+Fe23+O4 |
| O | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| O | β Rutile | TiO2 |
| O | β Corundum var. Sapphire | Al2O3 |
| O | β Spinel | MgAl2O4 |
| O | β Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
| O | β Zircon | Zr(SiO4) |
| O | β Iddingsite | MgO · Fe2O3 · 3SiO2 · 4H2O |
| O | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | β Pyroxene Group | ADSi2O6 |
| O | β Garnet Group | X3Z2(SiO4)3 |
| O | β Rutile var. Niobium-bearing Rutile | (Ti,Nb)O2 |
| O | β Olivine Group | M2SiO4 |
| Na | Sodium | |
| Na | β Albite | Na(AlSi3O8) |
| Na | β Analcime | Na(AlSi2O6) · H2O |
| Na | β Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| Na | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Na | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | β Spinel | MgAl2O4 |
| Mg | β Iddingsite | MgO · Fe2O3 · 3SiO2 · 4H2O |
| Al | Aluminium | |
| Al | β Albite | Na(AlSi3O8) |
| Al | β Analcime | Na(AlSi2O6) · H2O |
| Al | β Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| Al | β Corundum | Al2O3 |
| Al | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Al | β Corundum var. Sapphire | Al2O3 |
| Al | β Spinel | MgAl2O4 |
| Al | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | β Albite | Na(AlSi3O8) |
| Si | β Analcime | Na(AlSi2O6) · H2O |
| Si | β Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| Si | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Si | β Zircon | Zr(SiO4) |
| Si | β Iddingsite | MgO · Fe2O3 · 3SiO2 · 4H2O |
| Si | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | β Pyroxene Group | ADSi2O6 |
| Si | β Garnet Group | X3Z2(SiO4)3 |
| Si | β Olivine Group | M2SiO4 |
| K | Potassium | |
| K | β Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| Ca | Calcium | |
| Ca | β Calcite | CaCO3 |
| Ca | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
| Ca | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ti | Titanium | |
| Ti | β Ilmenite | Fe2+TiO3 |
| Ti | β Rutile | TiO2 |
| Ti | β Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
| Ti | β Rutile var. Niobium-bearing Rutile | (Ti,Nb)O2 |
| Fe | Iron | |
| Fe | β Ilmenite | Fe2+TiO3 |
| Fe | β Magnetite | Fe2+Fe23+O4 |
| Fe | β Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
| Fe | β Iddingsite | MgO · Fe2O3 · 3SiO2 · 4H2O |
| Zr | Zirconium | |
| Zr | β Zircon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | β Rutile var. Niobium-bearing Rutile | (Ti,Nb)O2 |
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References
Sapphire deposit, Wutu, Changle County, Weifang, Shandong, China