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Microcline (Var: Sunstone) : K[AlSi3O8], Sodalite : Na8[Cl2|Al6Si6O24], Pyrophanite : Mn2+TiO3 | |
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Symmes Pond Syenite, Straw Hill, Newfield, York Co., Maine, USA Sunstone variety of oligoclase with black pyrophanite blade (5 x 1 mm) with white oligoclase and blue sodalite. FOV = 5 x 3 cm. |
| © Van King | Photo ID: 190526 View Count: 149 |
Pyrophanite : Mn2+TiO3, Microcline (Var: Sunstone) : K[AlSi3O8] | |
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Symmes Pond Syenite, Straw Hill, Newfield, York Co., Maine, USA Pyrophanite 5 x 1 mm in sunstone variety of oligoclase with sodalite. Chemical analysis and XRD of pyrophanite, this specimen. |
| © Van King | Photo ID: 190518 View Count: 43 |
Sodalite : Na8[Cl2|Al6Si6O24], Biotite | |
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Symmes Pond Syenite, Straw Hill, Newfield, York Co., Maine, USA Blue sodalite cross-section (18 x 9.5 cm). Side view of possibly the largest mass of sodalite from USA. Ex John Dillingham collection. |
| © Van King | Photo ID: 189158 View Count: 68 |
Sodalite : Na8[Cl2|Al6Si6O24] | |
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Symmes Pond Syenite, Straw Hill, Newfield, York Co., Maine, USA Blue sodalite vein in biotite schist. FOV = 19 x 15 cm. Possibly largest piece of sodalite from USA. See other two photos. Has yellow fluorescence SW UV wherever the sodalite is very light in color. Fluorescence is more orange yellow in LW UV. |
| © Van King | Photo ID: 189148 View Count: 58 |
Sodalite : Na8[Cl2|Al6Si6O24], Sodalite (Var: Hackmanite) : Na8Al6Si6O24(Cl2,S) | |
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Symmes Pond Syenite, Straw Hill, Newfield, York Co., Maine, USA Main section of possibly USA's largest known mass of sodalite (21 x 15.5 cm). Two other orientations shown. Fluorescent hackmanite patches to over 1.5 x 1.5 cm which fluoresce bright yellow SW UV and more orange yellow in LW UV. Ex John Dillingham collection. |
| © Van King | Photo ID: 189181 View Count: 58 |
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