| Classification |
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| Species: | Andalusite var: Chiastolite |
| Formula: | Al2(SiO4)O |
| Confirmation |
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|
| Validity: | Believed Valid |
| References |
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|
| References: | Kunz, Gems and Precious Stones of North America (1892) |
| Data |
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| Mineral Data: | Click here to view Chiastolite data |
| Locality Data: | Click here to view Westford, Middlesex Co., Massachusetts, USA |
| Nearest other occurrences of Chiastolite |
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|
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| 23.7km (14.7 miles) | | ⓘLancaster, Worcester Co., Massachusetts, USA |
| 25.3km (15.7 miles) | | ⓘLancaster chiastolite localities, Lancaster, Worcester Co., Massachusetts, USA |
| 25.3km (15.7 miles) | | ⓘBlood Town Forest, Lancaster, Worcester Co., Massachusetts, USA |
| 30.8km (19.1 miles) | | ⓘSterling, Worcester Co., Massachusetts, USA |
| 50.2km (31.2 miles) | | ⓘIpswich, Essex Co., Massachusetts, USA |
| 72.8km (45.2 miles) | | ⓘRye, Rockingham Co., New Hampshire, USA |
| 88.8km (55.2 miles) | | ⓘRochester, Strafford Co., New Hampshire, USA |
| 97.9km (60.8 miles) | | ⓘWalpole, Cheshire Co., New Hampshire, USA |
| 98.3km (61.1 miles) | | ⓘAlstead, Cheshire Co., New Hampshire, USA |