Wollastonite from
Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
| Locality type: | Quarry | |
| Classification | ||
|---|---|---|
| Species: | Wollastonite | |
| Formula: | Ca3(Si3O9) | |
| Comments: | Found by Schooner in 1953 and 1954, and reported in Schooner (1955): "It is pure white in color, and granular massive in form. Fairly large pieces were obtained from the cores of lenticular quartz-actinolite-grossularite-diopside "horses" [pods] in biotite schist, from near the pegmatite. The mineral is photosensitive, turning brown and ugly if exposed to sunlight for very long. It is faintly fluorescent, in a pale orange tint, and strongly phosphorescent, in a brighter shade of the same color, under short-wave ultra-violet radiations". In Schooner (1958) there is more information: "W. T. Schaller, of the U. S. Geological Survey, made an optical study of this wollastonite, to determine its manganese content through a correlation with the refractive index…which was 1.632, indicating about one percent of iron and manganese oxides." Followed by this passage in Schooner (circa 1985): "Waldemar T. Schaller studied samples submitted by the author. The wollastonite, with tiny embedded tan gehlenite crystals, and occasional light yellow crystals of grossularite, occupies the centers of a few pods, surrounded by concentric zones of fine-grained tan grossularite, white quartz, and greenish diopside. Spurrite, larnite, vesuvianite, and calcite are rarely associated. Spurrite may, indeed, be mixed, granularly, with wollastonite. Small bladed crystals of wollastonite are seen on a few specimens." | |
| Habit: | granular, bladed | |
| Colour: | white | |
| Luminescent properties: | orange | |
| Quality for species: | Rock forming mineral/non-crystalline/little interest for collectors.(##) | |
| Abundance at site: | Very Rare | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Data | ||
| Mineral Data: | Click here to view Wollastonite data | |
| Locality Data: | Click here to view Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 96256 | |
| Long-form Identifier: | 1:3:96256:0 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Wollastonite | ||
| 10.2km (6.3 miles) | ⓘState Route 2 roadcut, Marlborough, Hartford County, Connecticut, USA | |
| 68.7km (42.7 miles) | ⓘU. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA | |
| 76.8km (47.7 miles) | ⓘRedwing Quarry, Falls Village, Canaan, Litchfield County, Connecticut, USA | |
| References | ||
