| Classification |
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| Species: | Kyanite |
| Formula: | Al2(SiO4)O |
| Comments: | Occurs in two modes: 1. As gray crystals in schist and quartz/albite/mica boudins, randomly oriented along the foliation, crystals typically reaching 5 cm. These resistant crystals form rough surfaces on schist boulders where they are abundant. 2: As very long crystals to 10s of cms, commonly concentrated in parallel to subparallel arrangement in massive quartz and adjacent schist. These crystals are pale blue-green with sky blue cores along their lengths. There are +/- 1-meter cone to fan-shaped boulders with solid concentrations of these crystals. |
| Habit: | elngated, tabular prisms |
| Colour: | gray to pale blue-green with sky blue cores |
| Quality for species: | Excellent - world class for species or very significant. (!!) |
| Abundance at site: | Very common |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Quartz | ⓘ14 photos of Kyanite associated with Quartz at this locality. |
| Damourite | ⓘ7 photos of Kyanite associated with Damourite at this locality. |
| Ilmenite | ⓘ5 photos of Kyanite associated with Ilmenite at this locality. |
| Fluorapatite | ⓘ4 photos of Kyanite associated with Fluorapatite at this locality. |
| Albite | ⓘ2 photos of Kyanite associated with Albite at this locality. |
| Hematite | ⓘ1 photo of Kyanite associated with Hematite at this locality. |
| Stilbite Subgroup | ⓘ1 photo of Kyanite associated with Stilbite Subgroup at this locality. |
| Muscovite | ⓘ1 photo of Kyanite associated with Muscovite at this locality. |
| Data |
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| Mineral Data: | Click here to view Kyanite data |
| Locality Data: | Click here to view Coe's Mine (Sedgewick and Buell mine; Kyanite and ilmenite locality), Litchfield, Litchfield County, Connecticut, USA |
| Photo Gallery | View Gallery (12 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 870085 |
| Long-form Identifier: | 1:3:870085:8 |
| GUID (UUID V4): | 78e96027-7325-4de4-abac-34070e75575d |
| References |
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Coe's Mine, Litchfield, Litchfield County, Connecticut, USA