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Forsterite from
St John's Island, Red Sea Governorate, Egypt
| Locality type: | Island | |
| Classification | ||
|---|---|---|
| Species: | Forsterite | |
| Formula: | Mg2(SiO4) | |
| Comments: | Composition of gem peridot is Fo92Fa8. | |
| Habit: | The crystals are elongated along the a-axis so that the brachy pinacoid b(010), which is markedly striated vertically to the c-axis, forms the largest face | |
| Colour: | yellowish green to grass green | |
| Quality for species: | Excellent - world class for species or very significant. (!!) | |
| Abundance at site: | Common | |
| Confirmation | ||
| Validity: | Confirmed | |
| Confirmation Methods: | Ion Microprobe | |
| Associated Minerals Based on Photo Data: | ||
| Forsterite | 2 | |
| - var Peridot | 2 | |
| Data | ||
| Mineral Data: | Click here to view Forsterite data | |
| Locality Data: | Click here to view St John's Island, Red Sea Governorate, Egypt | |
| Photo Gallery | View Gallery (16 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 317587 | |
| Long-form Identifier: | 1:3:317587:3 | |
| GUID (UUID V4): | 0 | |
| References | ||
St John's Island, Red Sea Governorate, Egypt